TW589419B - Bilobal cross-section fibers and fabrics prepared therefrom - Google Patents

Abstract

The present invention is directed to a multifilament yarn formed at least in part from filaments having cross-sectional bilobal S-shapes or Z-shapes. The yarns preferably have a denier per filament in the range of about 0.1 to about 4.0. In addition, fabrics made using the yarns of the present invention are disclosed. The fabrics have high moisture wicking, soft hand, and a silk-like lustrous appearance.

Description

589419 A7 B7 V. Description of the Invention (1) Field of the Invention The present invention relates to a multifilament yarn formed by a monofilament having a cross-sectional shape of a double blade with S-type or Z-type orientation. The monofilament produced according to the present invention is particularly suitable for the manufacture of garment fabrics with high moisture wicking ability, soft touch and silky glossy appearance. The present invention also relates to hydrophilic agents that can impart excellent wicking properties to fabrics or articles. Ming background There are several types of cross-section fibers used in synthetic monofilaments for apparel, including round, three-blade, ribbon, dog-bone, y-type, and combinations thereof. Cross sections have been developed to increase the ability of monofilaments to absorb or wick moisture. Moisture wicking represents the ability of water to move through or along fibers, and is considered a desirable feature of clothing fabrics because it can more easily evaporate by removing moisture from the surface of the skin. In addition, combinations of cross sections, deniers of monofilaments, and finishes applied to monofilaments and fabrics have been developed to enhance the ability of monofilaments to absorb or wick air. Double-sided fabrics have been developed and due to their surface chemistry, they help clear air move from the inside of the fabric to the outside. Typically, the "double-sided," fabrics are mainly monofilament with fine monofilament denier (dpf) on the outside and the thicker dpf monofilaments are mainly on the inside. Although "double-sided," the fabric has been completed by a knitted structure Weft knitted fabrics, but there is still room for improved wicking with individual monofilaments of the optimal shape. In addition, weft-knitted and knitted fabrics are difficult and expensive to construct in a manner that keeps the monofilaments primarily positioned on one side or the other. Therefore, especially in knitted and weft knitted fabrics, there is a need to provide an excellent moisture wicking < monofilament to improve wearer comfort, especially for sports wearers. -4 589419 A7 — _ _ B7______ 5. Description of the invention (2) Therefore, it is still necessary to provide a multifilament yarn that can provide the soft and soft feel and silky luster of clothing fabrics and has enhanced moisture wicking properties. SUMMARY OF THE INVENTION In accordance with these needs, the present invention provides a multifilament yarn comprising a monofilament having a double blade S-type or Z-type having a cross-section, wherein the S or Z-type cross-section includes a substance having two opposite ends. The rectangular central segment on the upper flat side, and the substantially flat side leaf surface (arm) has a curved inclined portion extending from opposite ends of the central segment, wherein the width of the central segment and each leaf surface is substantially the same, and the central segment and each leaf The lengths of the faces are substantially the same, where the angle formed between the leaf surface and the central segment is from about 105 ° to about 165. And wherein the monofilament has a monofilament denier number between about 0.1 and about 4.0. In another specific example, the present invention relates to a monofilament having a cross-section double-leaf S-type or Z-type, wherein the cross-section of each monofilament includes a rectangular central segment having substantially flat sides with two opposite ends, and is substantially flat. The side leaf surface has curved inclined portions extending from opposite ends of the central segment, wherein the width of the central segment and each leaf surface is substantially the same, and the length of the central segment and each leaf surface is substantially the same. The angle formed is from about 105 ° to about 165 °, and the monofilament has a monofilament denier number of about 0 ″ to about 4.0. The invention also relates to fabrics formed at least in part from the monofilaments and yarns produced by the invention. In a specific example, the present invention relates to a double-sided fabric, comprising a multifilament yarn formed at least in part on one side by a monofilament having a cross-section double blade S-type or Z-type, wherein each monofilament The cross-section includes a rectangular center segment with substantially flat sides with two opposite ends, and the essence -5- this paper size applies Chinese National Standard (CNS) A4 specifications (210 X 297 mm) 589419 A7 B7

V. Description of the invention (3) The flat side leaf surface has curved inclined portions extending from the opposite ends of the central segment, wherein the width of the central segment and each leaf surface is substantially the same, and the length of the central segment and each leaf surface is substantially the same , Where the angle formed between the case surface and the center segment is from about 105 ° to about 165. And wherein the monofilament has a monofilament denier number between about 0.1 and about 4.0. The present invention also provides hydrophilic oiling agents that can be used to impart wicking characteristics to monofilaments, yarns, or fabrics, such as poly (hexyl adipamide) [poly (oxyethyl) adipamide] Solution of copolymer in water and propylene glycol. Brief Description of Formula M Figure 1A shows a side view of a capillary tube including a spinning nozzle for manufacturing three filaments with a zeta-oriented orientation. Figure 1B shows the capillary through Figure 1A A cross-sectional view of a ζ-type spinning. Figure 2A shows a side view of a capillary tube including a spinning nozzle for manufacturing three monofilaments with s · type orientation. Figure 2B shows the capillary spinning through Figure 2A. Figure 3A, 3B and 3C show cross-sectional views of the multifilament yarns of the present invention. Figure 3a shows the multifilament of the present invention with 50% S-type monofilaments and 50% Z-type monofilaments Yarn. Fig. 3B shows a multifilament yarn according to the present invention with 100% Z-type monofilament. Fig. 3C shows a multifilament yarn according to the present invention with 100% S-type monofilament. Detailed description The cross section of the monofilament of the present invention is a unique double blade s_type or z_type. Refer to FIG. 1B '100 cross sections There is a rectangular central segment 110 with a substantially flat side, and a leaf surface 12 connected to the central segment 110. The leaf surface 120 has curved inclined portions extending from opposite ends of the central segment 110, so that each leaf -6-本The paper size applies the Chinese National Standard (CNS) A4 specification (21〇X 297 public love) 589419 A7 _____ _B7_ 5. Description of the invention (4) The angle C formed between the surface 120 and the center segment 110 is about 105. to about 165. "Z-type" cross-sections are shown in Figure 1B and "S-type, and cross-sections are shown in Figure 2B. The yarn formed using the monofilament of the present invention can have any proportion of s-type or Z-type cross-sections. Orientation. In a specific example of the present invention, a yarn formed from a mixture of a cross section with a z-type and a z-type. Fig. 3A shows a mixture of monofilaments with a cross section with a S-type and a Z-type. In particular, the s _ The profile cross section may comprise at least about 25% of the total monofilament of the multifilament yarn, such as at least about 50%, such as at least about 60%, such as at least about 75%, and in some specific examples, about 100%. The z-type The cross-section may account for at least about 25% of the total monofilament of the multifilament yarn, such as at least about 50%, such as at least about 60%. At least about 75%, and in some specific examples, about 100%. In another specific example of the present invention, the monofilament of the yarn has a fixed directivity. "Fixed directivity, which means that the cross-sectional orientation of the monofilament is substantially the same. For example, 'the monofilaments may all be the same s_type orientation as shown in Figure 3C. Or' the monofilaments may be all the same Z-type orientation as shown in 3B. The monofilaments of the present invention are polymerized by any thermoplastic The monofilaments of the present invention can be prepared from homopolymers, copolymers, and / or terpolymers of monomers that can form molten spinnable polymers. Melt-spinnable polymers contain polyamines, such as polyhexamethylene adipamide (Nylon 6,6); polycaprolactam (Nylon 6); polyheptylamine (Nylon 7); nylon 1〇; Polydodecanamide (Nylon 12); Polybutylene adipamide (Nylon 4,6); Polyhexyl sebacamide homopolymer (Nylon 6, 10); Polyamide of n-dodecane diacid and hexamethylene diamine homopolymer (Nylon 6,12), and polymethyleneamine of dodecane diamine and n-dodecane diacid (Nylon 12, 丨 2 ); Polyesters such as polyethylene terephthalate ("2-GT"), polyethylene terephthalate paper standards apply Chinese National Standard (CNS) A4 specifications (21〇X 297 mm)

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("Di- and di-methylene glycol vinegar (" 3-GT "), polybutylene terephthalate, acid," Polyethylene terephthalate and poly (ethylene terephthalate), poly (ethylene terephthalate) _ , | Ethylene, and polyurethane; and its method: i is used for the homopolymer, copolymer, and terpolymer of the present invention, and the art of the art is known and may include the use of catalysts, auxiliary catalysts And chain branching agent dimension ~ copolymers and terpolymers, as known in the art. It is better to form fiber = table: the substance is at least one kind of polyamide, because polyamide has a lower modulus and is generally soft And, due to the surface chemistry of these polymers, they are more and more pro-jc. Better, the polymer is nylon 6, nylon, or a combination thereof. Better, the polyamide is nylon 6,6.

The polymers used in the present invention and the resulting monofilaments, yarns, and articles may include Xifanjiao 彳, which may be added or added to the formed polymers or articles during the polymerization reaction, and may improve the polymers or fibers nature. Examples of such additives include antistatic agents, antioxidants, antimicrobial agents, flat frame agents, dyes, light stabilizers, polymerization catalysts and auxiliaries, adhesion promoters, and / or brighteners such as oxides, flatteners, organic scales Acid salts and combinations thereof. The polymers used in the present invention and the resulting monofilaments, yarns and articles can be subjected to permanent or semi-permanent hydrophilic treatment or oiling on their surfaces. These treatments can improve the wet wicking properties of objects. Suitable wicking treatments useful in the present invention include hydrophilic polymeric compositions, such as those made from hydrophilic segments such as poly (hexylhexanediamine) -poly [poly (oxyethyl) hexanediamine] copolymers Polyamine [CAS No. 92717-79-8], as described in USP 4,468,505, which is incorporated herein by reference; Hydrophilized hard oxygen microemulsions such as "Sandotor HV Liquid" purchased from Clariant; Hydrophilic Copolymerization- 8- This paper size applies to Chinese National Standard (CNS) A4 (210 X 297 mm) 589419

For example, copolyesters containing both polyoxyethyl diester and alkylene diester segments; and certain nonionic surfactants, as described in the Canadian patentee. These wicking treatments depend on their ability to improve water wicking performance and on their durability or durability to water washability. This performance variability depends on several factors, including the composition of the treated fiber, the amount of wicking treatment applied to the fiber, and the resistance to washout.

Poly (polyhexyl adipamide) -poly [poly (oxyethyl) hexanediamine] copolymers have been found to be particularly useful for treating articles of the present invention. The polymer is composed of polyoxyethyl adipamide fragments and poly (hexyl adipamide) fragments. The poly (oxyethyl) hexanediamine fragment is obtained by reacting poly (oxyethyl) diamine [CAS No. 65605_36-9] with adipic acid. The poly (oxyethyl) diamineoxyethyl group may contain trace amounts of, for example, less than 25 mole% of oxypropyl group.

The polyoxyethyl adipamide segment has high affinity for water and imparts hydrophilic properties to the copolymer and therefore hydrophilicity to the treated fibers, while the poly (hexyl adipamide) segment has low water solubility and The fiber is therefore given a permanent treatment. These hexamethylene diamine copolymers are particularly useful when the polymer used for the substrate to be treated is resistant to 6, 6, or a combination thereof, and when the polyamide is 6,6 optimal. Polyoxyethyl adipamide and poly (hexyl adipamide) can vary in length. Increasing the length of the polyoxyethyl adipamide fragment will increase the water wicking properties of the treated and at the same time increase its water solubility and therefore reduce its washout durability. Increasing the length of the poly (hexyl adipamide) fragment can reduce its water solubility and therefore increase the washout durability of its treatment. Polyoxyethyl adipamide fragment length is also determined as poly (oxyethyl) di-9- This paper size applies Chinese National Standard (CNS) A4 specifications (210X 297 mm) B7 V. Description of the invention (7) , Commercial availability. Poly (oxyethyl) diamines with molecular weights of 600, 900 and 2000 are commercially available from Huntsman and are therefore particularly useful. They are known as XTJ-500, XTJ-501 and XTJ-502. The relative amount of these fragments in the treatment composition can also be changed in any proportion. The proportion of polyoxyethyl adipamide fragments will increase the water wicking properties of the treatment and at the same time increase its water solubility and therefore reduce its washout durability. . Conversely, increasing the proportion of poly (hexyl adipamide) fragments can reduce their degree of water degradation and therefore increase the washout durability of their treatment. The relative amounts and lengths of oxyethyl adipamide and poly (hexyl adipamide) fragments in the copolymer can be performed to optimize water wicking performance while maintaining the durability of repeated washings. The preferred copolymers of the present invention use poly (oxyethyl) diamine with a molecular weight of about 900 to about 2000, and the nylon 6-6 weight ratio is from about 18-22%. The polymer can be prepared as described in 1, 4,468,505. These copolymers are soluble in suitable solutions when used in the present invention. A preferred system was found to be a solution of 1,2-propanediol and water. These combinations provide solutions that can be applied to the fabric either by itself or with other processing agents described later. The amount of poly (hexyl) hexamethylenediamine-poly [poly (oxyethyl) hexamethylenediamine] copolymer in the solution can vary from about 0.1% to about 40% by weight. The optimal range is about 8% to about 15%. At the highest percentage of copolymer, the solution will gel. Low percentages are acceptable but less economical. For application to fabrics, the solution can be diluted with water again to speed up application of only the required amount of oil without over-coating. 1,2-propanediol is used to promote the solubility of the copolymer in water. A preferred amount of i, 2-propanediol is approximately equal to the weight of the hydrophilic polyamide copolymer. Can use more 1,2-propanediol (such as 15 times the weight of the copolymer), but it will increase the coating process B7 V. Description of the invention (8 Drying time required. Less 1,2-propanediol (such as 0.5 times the weight of the copolymer) can be used, but the solubility of the hydrophilic polyamine copolymer is reduced. Use 2-propanediol Than ethanol, as taught by USP 4,468,505, is non-flammable, less toxic, less carcinogenic, uses less, has a higher boiling point and is therefore less volatile.

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A hydrophilic copolyester can also be used as the hydrophilic agent of the present invention. Hydrophilic copolyesters include copolyesters containing both polyoxyethyl diesters and alkylene diester segments. It may be a simple copolyester, i.e. it may contain only polyoxyethyl diesters and polyalkylene diester fragments, and the copolyester may be derived from polyoxyethylene, diesters and glycols. Polyoxyethylene, dimethyl terephthalate and ethylene glycol of various molecular weights are the most common raw materials for these copolymers, mainly due to cost and availability. The co-monomer used to prepare these hydrophilic copolyesters may also have several variations. These copolymers are disclosed in USP 3,416,952, which is incorporated herein by reference. Examples of these copolymers include "ZELCON" 5 126 [CAS No. 9074-67-3] purchased from Stepan Company and "MILEASE" T [CAS No. 9016-88-0] purchased from Imperial Chemical Company, UK, " Both ZELCON "5126 and" MILEASE "T are sold as aqueous dispersions containing up to 83% water. The aforementioned permanent or semi-permanent treatment compositions can be applied by any suitable means such as blade coating, brush coating, dipping, foaming, Feed into the tongs, spray or otherwise apply to the fabric. The composition typically has a minimum solids coating on the fiber of at least 0.1% by weight, preferably at least 0.5% by weight on the fiber, and has achieved water wicking and durability. Applying higher amounts will improve the hydrophilic properties. After drying or removing the solvent, a durable hydrophilic coating is left on the fabric or fiber surface. This coating allows water to be wetted on the surface more quickly -11-This paper size is applicable to China National Standard (CNS) A4 (210 X 297 mm) 589419 A7 B7 V. Description of the invention (9

The fabric moves along the length of the fiber and through the fabric layer. Can be applied to fibers during spinning and / or drawing processes, for example, tandem. Additions include anti-electrolytic agents, slip agents, adhesion promoters, anti-oxidant and anti-microbial agents, anti-oxidants Fuels, lubricants, and combinations thereof. Furthermore, 2 other additives can be used in each step of preparation, as known in the art. The monofilament of the present invention can also be made from two polymers, such as two kinds of nylon or two kinds of polyester, to make a so-called "two-component" monofilament. Moreover, the monofilament of the present invention (including a bicomponent component) having a double cross-cut can be mixed with other cross-cut monofilaments and / or polymers to form a yarn. The foot monofilament of the present invention can be formed by any suitable spinning method, and it can be different depending on the kind of polymer used, as known in the art. Generally, the melt-spinnable polymer is extruded and the molten polymer is extruded through a capillary orifice of a spinning nozzle having a design corresponding to the cross-section of the double blade required by the present invention. The extrusion (fibers are then chilled or solidified with a suitable medium such as air to remove heat from the fibers leaving the capillary. After chilling, the monofilaments are conveyed, intertwined and wound into a multifilament bundle. Used to make the monofilaments of the present invention The silk spinning nozzle capillary can be any capillary that can produce the double blade cross-section. A suitable spinning nozzle is described, for example, in USP 5,447,771, which is incorporated herein by reference. In particular, and as shown in Figures 1A and 2A herein The spinning nozzle consists of a plate with the upper and lower surfaces connected by a segmented capillary tube. The segmented capillary tube includes a central portion and two radial leaf surfaces each in a rectangular shape. As shown in Figures IA, 1B, and 2B, the angle (C 1 or (:. 2) The angle between the sole leaf surface and the central part. The angle 匚 丨 is generally between about 105 to about 165. The angle C2 is generally between about 105. to about 165.-horizontal- 12- This paper is of suitable size] Chinese national standard (21〇χ

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589419 A7 ____ B7 V. Description of the invention (10) The angles Cl and C2 of the cutting plane may be the same or different. It is preferable that the angles are substantially the same. For s-type cross sections, the angles C1 and C2 of each leaf surface (as shown in FIG. 2B) are between about 105. To about 165. , Preferably between about 120. To about b5. Preferably, for a Z-shaped cross section, the angles C 1 and C 2 of each leaf surface (as shown in FIG. 1B) are between about 105 ° and about 165. Preferably, it is between about 20 ° and about 13500. Furthermore, referring to FIG. 2A, the gap may have any length (A1 & A2), for example, about 0.005 to about 0.050 inches, more than about 0.010 to about 0 020.妤, and having any width (B1 and B2), such as about 0.001 to about 0.015 inches, which is about 0.003 to about 0.005 inches. The central portion 11 may have any length (D), such as about 0.005 to about 0.025 leaves, preferably about 0.012 忖 to about 0.020 leaves, and have any width (E), such as about 0.000 to about 0.01 leaves. 0.015 忖, preferably about 0.003 to about 0.005 inches. FIG. 1A may have similar dimensions. The size of each slit in the preferred embodiment is further defined by the following ratio: 1.5 < A1 / B1 < 10, where A1 is the slit length and B1 is the slit width. The formula of the second leaf surface is 1.5 < A2 / B2 < 10, where A2 is another slit length and B2 is the slit width. Generally, the spinning nozzle capillary must have the aforementioned dimensions so that the monofilament of the present invention can be prepared. However, it is important to understand that specific dimensions and ratios within the above ranges may depend on factors such as polymer type, viscosity, and cooling medium. It should also be understood that the shape of the slits can be modified, as shown in Figure 1A, where the inclined portion of the radial slit is slightly curved. Preferably, the radial slits have substantially the same size and shape. Spinning nozzle capillary for melt polymer extrusion is cut to produce the hair -13- This paper size applies to China National Standard (CNS) A4 (210 X 297 mm) 589419 A7 B7

V. Description of the invention (11 required cross-sections. Figures 1A and 2A show capillary hair and monoplanar views forming monofilaments. Capillary or spinning nozzle perforations can be obtained by any suitable method as described in 5,168,143 (which And for reference in this article) laser cutting method, performance hole, electrical discharge machining (EDM) and punching cutting, as known in the art. Soft capillary holes are cut by laser beam. The holes of the spinning nozzle capillary can be 1 It has any suitable size and can be cut into continuous or non-continuous slits. Non-continuous capillaries can be drilled into small holes that allow the polymer to agglomerate and form the pattern of the cross-section of the double blade of the present invention. Form any kind of yarn, such as fully stretched yarn or partially oriented yarn, such as used to deform feed yarn. According to this, in one specific example, 'early silk can be spun into fully stretched yarn For example, oriented yarns with a break elongation of about 35 to about 50% can be used immediately to make articles. However, 'the monofilament of the present invention may be deformed, also known as `` bulking,' ' Or "curl." In this specific example of the invention, It can be stretched into partially oriented yarns, such as oriented yarns with a break elongation of about 55 to about 75%, and then deformed by techniques such as tensile false twist deformation, air jet deformation, gear curling, etc. The yarn can be processed into multifilament fibers or yarns having any desired denier number, monofilament number, and dpf. The yarn formed from the monofilament of the present invention generally has a total denier number of about 10 to about 300 denier Preferably, it is between about 15 to about 250 deniers, and most preferably between about 20 to about 150 deniers. The monofilament of the present invention also generally has a monofilament denier number of about 0.1 to about 4 dpf. It is preferably between about 0.8 and about 3.5, and most is between about 0.9 and about 3.0. In a specific example, dpf is less than about 2.9 or less than about 2.5. Double-leaf monofilaments can be used with other monofilaments-14 -This paper size applies to China National Standard (CNS) A4 (210 X 297 mm)

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V. Description of the invention (mixed, for example, those with dpf higher or lower than about 4. The yarn of the present invention can be formed from a plurality of different monofilaments 7 having different dpf ranges. In this example, the yarn needs to be prepared from at least one The invention is formed by a monofilament with a multi-leaf cross-section. Preferably, each monofilament of a yarn containing a plurality of different monofilaments has the same or different dpf, and each dpf is between about 0 "to about 4, preferably about 0.8 to Between about 3.5, and preferably between about 0.9 and about 30. The monofilaments of the present invention can be used to make fabrics. Any known suitable method for making fabrics can be used. For example, weft knitting, circular knitting, Method for knitting and flattening staple fibers into a non-woven fabric. In a specific example, a double-sided fabric is obtained by using the monofilament of the present invention on the main side. Any other type of yarn can be used to form the other side of the fabric, but It is preferred to have different wicking capabilities. Appropriate yarns on the other side of the two-sided fabric may be composed of polyamide, polyester, polyolefin, natural fibers such as cotton, wool, silk, rayon, and combinations thereof. Fabrics can be made by methods known in the art. For example, the fabric can be woven on one side with multifilament yarns having a double blade cross-section of the present invention and on the other side with other yarns. A suitable method for making a double-sided fabric involves weft-knitting and flattening the yarn. The two sides Yarn has the effect of removing moisture from the body. Generally, fabrics with higher dpf are used on the inside of underwear and fabrics with lower dpf are used on the outside of underwear. However, the double-leaf cross-section multifilament yarn of the present invention can be used Either side of the double-sided fabric. For example, the double-leaf cross-section multifilament yarn of the present invention can be used on the outside of the fabric and treated with an oiling agent, such as the hydrophilic agent described above. In another specific example, different yarns such as cotton can be used To form the outer side of the fabric and the double-leaf multifilament yarn on the outer side 0 -15- This paper size is applicable to China National Standard (CNS) A4 (210X297 mm) 589419 A7 B7 V. Description of the invention (η) Another preferred specific In the example, the fabric is formed of at least about 50 ° /., Preferably at least about 80% of the monofilaments of the present invention. In another preferred embodiment, the fabric formed of the monofilaments of the present invention and Permanent or semi-permanent A hydrophilic humectant combination. The fabric can be used to make any type of clothing, including swimwear, sportswear, and ready-made underwear. Any other additives required can be directly coated on the fabric. Examples of such additives include antistatic agents, antioxidants, Antimicrobial agents, flame retardants, dyes, light stabilizers, polymerization catalysts and auxiliaries, adhesion promoters, matting agents such as dioxide's, flatting agents, organic phosphates, permanent or semi-permanent hydrophilic wetting agents, and combinations thereof. Preferably, a suitable wetting agent is added to the fabric prepared using the multifilament yarn of the present invention. A suitable wetting agent directly applied to the fabric contains the above-mentioned hydrophilic agent. The fabric obtained using the monofilament of the present invention is found to exhibit excellent performance Moisture wicking shell, soft feel and silky gloss. Multifilament yarns with high dpf monofilament have been developed for use in floor mats, which have a double-leaf cross-section in relative directionality. For example, Mill et al., USP 5,447,771, describe multifilament yarns in which the ratio of "S" and "Z" in the cross-section is 40:60 to 60:40. The inventors have unexpectedly found that S and Z cross-section monofilaments can be used to form garments with excellent wicking properties, especially when the dpf is less than about 4. The moisture wicking of the yarn of the present invention is determined by known methods, such as by vertical wicking test or by: flat wicking test. The vertical wicking test may be performed by weaving the yarn into a tube, and then wiping or treating the tube with any glycoside agent and drying the treated tube with air.婊 glance at 尨 li, and let go of this a &? Cut into 1-inch wide and 8-inch long strips and hang vertically on the surface of the water, 3 leaves 认 4 in the water and 5 inches on the surface -16 -This paper size applies to China National Standard (CNS) A4 (210X297 mm)

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Line 589419 A7 _______ B7 V. Description of the invention (14). Visually observe the water wicking height of the strip at a predetermined time, such as 丨 minutes, 5 minutes, 10 minutes, and 30 minutes. Mixed S- and Z-type cross-sections having a monofilament denier number in the range of about 0.1 to about 4.0 have been found to exhibit enhanced moisture wicking properties. Excellent results have also been found on multifilament yarns with an S-type or Z-type cross section that is fixed in the direction described herein. The yarn of the present invention has a toughness suitable for clothing. The tenacity is measured on an instron equipped with two clips with a ten-foot gauge to secure the yarn. The yarn was then stretched at a tension speed of 10 inches / minute, the data was recorded by a load battery, and a stress-tension curve was obtained. Toughness is the breaking strength (in grams) divided by the yarn denier. Both partially oriented yarns and fully drawn yarns of the present invention may have a tenacity of about 2 to about 8, preferably about 3 to about 6 g / denier. The elongation at break of the yarn can be measured using any known device. For example, one method involves stretching on a Instron tester TTB (Instron Engineering) with a hoe made by Alfred Suter and using a flat jaw clamp (Instron Engineering) to stretch to rupture. Generally, a sample of about 10 inches in length is subjected to two twists per inch at a stretch ratio of 60% per minute at 65% relative humidity and 70 ° F. The elongation at break of fully drawn yarns and partially oriented yarns of the present invention are both between about 30% and about 80%, preferably between about 40% and about 60%. The desizing shrinkage of the yarn can be measured using any known method. For example, it can be determined by generating a load of 0.1 g / denier on the yarn by a yarn length hanging weight and measuring its length (L0). Then remove the weight and immerse the yarn in boiling water for 30 minutes. Then remove the yarn, then load it with the same weight, and record and new _17_ This paper size is suitable for a standard (CNS) A4 specification (210 X 297 public love) " '^ 589419 A7 B7

Length (Lf). The percent shrinkage (S) is calculated using the formula: Shrinkage (%) = 100 (LG-Lf) / L0 Low shrinkage for most fabric purposes is highly desirable. The yarn of the present invention has a shrinkage ratio of less than about 10%, preferably less than about 7%, and most preferably less than about 7%. The invention will now be illustrated by the following non-limiting examples. Examples Used for the polymerization of oil (the production of hexamethylene di-t-diamine 1 copolymer by polyoxyalkylene diamine XTJ-501 (HuntSman, CAS 65605_36-9, Moore weight 900) 506 g, hexane 82J grams of acid and 277 6 grams of wheel-resistant salt solution (53: 2% aqueous solution of 1: 1 mole ratio of hexane: amine and adipic acid, heated to uniformity) equipped with a mechanical stirring rod, thermocouple, and agitation Paddle, distillation head, and 2 liter resin kettle in ^ γ2 line. Start stirring, then remove all air by venting and blowing in with nitrogen 3 times. The mixture is a thin white slurry. The mixture is quickly heated to the pot temperature 12 (TC distilled off water. Use a nitrogen sweep to accelerate: completely removed from the reaction period. Steam heating or heating tubes at the top of the kettle can be used to reduce water reflux. Once the water distillation slows down (about 130 ml is collected), the mixture is heated to The temperature of the kettle was about 20 ° C and maintained for 4 hours. The water was heated to a temperature of 26 ° C and maintained at 260 ° C for 30 minutes, and then cooled to room temperature. The solid polymer was removed from the bottle and shredded Or grind it into the desired flakes. Borrow

589419 A7 B7

V. Description of the invention 100 g of 1,2-propanediol and 800 g of water are mixed and heated to 90-95 ° C in a blender. Add 100 grams of the poly (hexyl adipamide) poly [4 (oxyethyl) hexanediamine] copolymer prepared above and quickly stir to dissolve for 30 minutes. The solution was filtered through a filter cloth to remove Dissolve the granules, and then add a small amount of glutaric acid (670 ppm) (Ucarcide 22 5) as a preservative. Example 1 40 denier-14 monofilament double-leaf cross-section yarn with 50% monofilament as "s". 50% monofilaments are spun in the "Z" type. Monofilaments are spun at a temperature of 29 ° C. The yarn is spun with nylon 6,6, with a relative viscosity (RV) between 45-47 .Using a spinning nozzle in a 3-end / package configuration with a double blade cross section using a regular tolerant package formulation. Resistance to 6,6 spinning at a winding speed of 3000 to 3200 yarns / minute And stretched at a stretch ratio of 25 to 27 X. The monofilament stiffness is 3.6 g / denier, and the yarn has a fracture elongation of 42%. The cross section of the yarn is similar to that shown in Figure 3A .Using regular spinning / sub-spinning oiling agent. Yarn knitted on single-end knitting machine into Lawson tube. After weaving into tube, each product of the above example was tested by vertical wicking test method. Prepared in two ways : 1) Wash thoroughly to remove all oiling agents, and (2) then treat with a hydrophilic wicking agent followed by air drying. The specific hydrophilic oiling agent used in this test is the copolymer dispersion prepared above. The product is then Cut into 1-inch-wide and 8-inch-long strips, and then hang on the water surface, 3 inches in the water surface and 5 inches on the water surface. The examiner then visually observes the height of the wicking of the strips to 5 inches. Minutes, 5 minutes, 10 minutes, and 30 minutes. Use nylon 6,6, a round, two-leaf, and dog bone cross-section as a comparison. Interestingly, • 19- This paper is suitable (⑽) M size (Super tear treasure) A7

Not good when dead: y ^ # ^ 〇 ± ^ w, ¾ ... Attention, but ▲ When using a hydrophilic oiling agent, α results in a dramatic change.嗲 Oil Disinfection 丨 In each county, it is best to add a hydrophilic oiling agent to the cut surface of Shuanghe Tablet Museum. The results are summarized in Table 1. With 100% s_type single-deflection ^ two monofilament double blades ^ = 2; 40 deniers spinning using a resistant wheel 6,6-the silk degree is 4.3 grams; Dan body :, /: similar to Example 1 Way made. The dagger and yarn break elongation is 41%. Furthermore, the * / line has a withdrawal / recovery yield of 5 2 0/71 > u. Fine sheep 5.0 · / ❶ and entanglement with a mother rice 11 knot. The yarn has a seven-dimensional cut surface similar to that shown in FIG. 3C. The moisture wicking ability of the yarn was tested in the vertical wicking test, as shown in Table 丨. Example 3 j has a loo% ζ · type monofilament cross-section and uses a Nylon 6-6 spinning Muni · 1-4 early silk double-leaf cross-section yarn in a manner similar to that of Example !. Then test the wet wicking capacity of the yarn in the vertical wicking test, as shown in Table 丨. The yarn has a cross-section similar to that shown in Figure 3B. The yarn had denier, elongation, and desizing shrinkage similar to those of Example 1. Example 4 50% S-type monofilament cross-section and 50% z-type monofilament cross-section and 44 denier-14 monofilament double-leaf cross-section yarns spun with nylon 6,6 are similar to the example It was made by the method of 1 but the stretching ratio was reduced to 19 χ. The yarn has a cross section similar to that shown in Fig. 3A. The tenacity of the yarn is 3 "g / denier and the elongation at break of the yarn is 59%. Example 5 Has a 50% S-type monofilament cross section and a 50% monofilament cross section and uses -20- This paper size applies to China National Standard (CNS) A4 specifications (210 X 297 mm) 589419 A7 ________B7 __ V. Description of the invention (18) 80 denier-28 monofilament double-leaf cross-section yarn resistant to 6,6 spinning resistance is produced in a manner similar to that of Example 3, and the tenacity of the yarn is 4 2 g / denier and yarn 42% elongation at break. The desizing shrinkage of the yarn was 6.0% and the yarn was tangled at 15 knots per meter. The wet wicking capacity of the yarn was then measured in a vertical wicking test as shown in Table 1. However, since the standard test reached a maximum of 5 内 in 30 minutes, other tests were performed on treated 80-28 yarn slivers, and the wicking was found to last more than 5 inches. Up to 6.2 inches in minutes.

Comparative Examples A to F formed the comparative yarns of denier-monofilament described in Table 1 in a manner similar to Example 1. Each yarn is made of nylon 6,6. The wet wicking capacity of the yarn was then measured in a vertical wicking test, as shown in Table i. Table 1 Example Monofilament Denny Number Cross Section Processing Height (忖) Wicking 1 minute 5 minutes 10 minutes 30 minutes 1 40-14 Duplex tablets (50% S, 50% Z) Wash 0.30 0.35 0.45 165 ~ 1 40- 14 Double blade (50% S, 50% Z) treatment 1.75 2.85 3.75 Too ^ 2 40-14 Double blade (100% S) wash 0.35 0.40 0.50 X75 2 40-14 Double blade (100% S) treatment 1.70 2.95 3.85 17 〇〇 ～ -21-This paper size is applicable to China National Standard (CNS) A4 (210X 297mm) 589419 A7 B7 V. Description of the invention (19) 3 40-14 Double blade (100% Z) Washing 0.30 0.35 0.55 0.70 3 40-14 Double leaves (100% Z) treatment 1.65 2.80 3.80 5.00 5 80-28 Double leaves (50% S / 50% Z) Wash 0.30 0.35 0.45 0.65 5 80-28 double leaves (50% S / 50 % Z) Treatment 1.70 2.95 3.85 5.00 Comparative Example A 70-51 Round Wash Bar 0.10 0.10 0.25 0.55 Comparative Example A 70-51 Round Treatment 0.75 1.55 2.00 2.75 Comparative Example B 70-24 Three Blade Wash 0.40 0.75 0.95 1.40 Compare Example B 70-24 Three-leaf treatment 0.95 2.05 2.70 3.70 Comparative example C 70-66 Round washing 0.20 0.50 0.75 1.55 Comparative example C 70-66 Round treatment 1.10 1.90 2.35 2.95 Comparative Example D 86-26 Dog Bone Wash 0.40 0.40 0.40 1.10 Comparative Example D 86-26 Dog Bone Wash 1.15 2.05 2.80 3.85 Comparative Example E 70-34 Round Wash 0.40 0.50 0.55 1.30 Comparative Example E 70-34 Round Wash 0.50 1.00 1.55 2.65 Comparative Example F 70-34 Three-leaf washing 0.40 0.40 0.60 0.95 Comparative Example F 70-34 Three-leaf treatment 0.95 1.75 2.45 3.65

Hold

Line ′ As shown in Table 1, the wicking capacity of the treated double-leaf cross-section of the present invention far exceeds that of other cross-sections. For example, the treated double-leaf yarn of the present invention completely wicks the entire long yarn in 30 minutes each. It is particularly unexpected that the three-leaf and dog-bone cross sections have better wicking properties than the two-leaf cross section when tested for fabrics but not treated with a hydrophilic oiling agent. Based on this, the multiplication effect between the cross section of the two blades and the hydrophilic oiling agent is unexpected. Phase-22- This paper size is in accordance with Chinese National Standard (CNS) A4 specification (210 X 297 mm) 589419 A7 _ _?! _______ ^-V. Description of the invention (20) Believe that the multiplication effect and double-leaf fiber The method of forming the microcapillary between the fibers together is related to the fact that when the surface of the fiber is wet, the wicking property can be improved due to the hydrophilic oiling agent, and the three-leaf and dog bone cross sections cannot be achieved. Example 6 The yarn of Example 1 and the yarn having a variable cross section such as a dog bone and a circular cross section were spun using nylon 6,6. Each of these yarns is weft-knitted into a "two-sided structure" with 70 denier 34 monofilament nylon 6,6 as the second yarn, in which 50% by weight of each yarn in the fabric. Both sides of the fabric are achieved by controlling the length of the knit stitch and the feed tension to the knitting machine. These fabrics are then dyed and oiled using regular techniques that are resistant to loss. Sandator HV liquid purchased from Clariant was applied as a hydrophilic reagent. The wicking test includes a method for simultaneously testing the wicking rate and fabric absorption in a single test. In particular, the test included a device containing a perforated plate with a diameter of 55 mm and fixed to a wooden table to ensure stability and connected to a non-compressible flexible tube. The flexible tube was placed in a 1 liter liquid storage tank and the storage tank was placed on an electronic balance to measure the weight of the liquid remaining in the storage tank. As for the water 'sucked into the fabric from the tank core, the weight loss was measured by a computer connected to a balance to measure the water absorption. The fabric was cut into 120¾mx130 ^ m samples and placed on a perforated plate with a cylindrical block at the upper end to facilitate contact with the wet perforated plate. The overall absorbency of the fabric is measured and the wicking rate is calculated from this data. The test results are shown in Table 2. -23- This paper size applies Chinese National Standard (CNS) A4 specification (210X297 public love) 589419 A7 B7 V. Description of invention (21) Table 2 Surface water accumulation capacity of wicking result of yarn cross section (gram water / square meter) Surface water transfer rate ((g water / square meter / second) Double blade cross section (Example 5) 565 6.14 Dog-bone 417 4.81 Round 377 4.09 As shown in Table 2, the double blade cross section of the present invention accumulates surface water It also far exceeds other cross-sections in terms of absorption and absorption of water. Those skilled in the art can make several modifications through the aforementioned teachings. These modifications are also within the scope of the patent application of the present invention. Length of monofilament arm or leaf surface Bl, B2 Width of monofilament arm or leaf surface Cl, C2 Angle between each leaf surface and central segment D Length of central segment E Width of central segment 100 Monofilament cross-section 110 center Fragment 120 Arm or Foliage -24- This paper size applies to China National Standard (CNS) A4 (210 X 297 mm)

Claims (1)

589419 A BCD 6. The cross-section of the patent application wire includes a rectangular central segment with two substantially flat sides at opposite ends, and the substantially flat side foliar surface has curved inclined portions extending from opposite ends of the central segment, of which the central segment And the width of each leaf surface is substantially the same, and the length of the central segment and each leaf surface are substantially the same, wherein the angle formed between the leaf surface and the central segment is from about 105 to about 165 ′ and the number of monofilaments is about 0. Between 1 and about 4.0. 9. · A yarn composed of at least part of a double-leaf s-type or 2-type monofilament having a cross-section, wherein the cross-section of each monofilament includes a rectangular central segment having substantially flat sides with opposite ends, and substantially The flat side leaf surface (arm) has curved inclined portions extending from opposite ends of the central segment, wherein the width of the central segment and each leaf surface is substantially the same, and the length of the central segment and each leaf surface is substantially the same, where the leaf surface The angle with the center segment is from about 105. To about 16 5. And wherein the total number of monofilaments of the yarn includes at least 70% of z-type or S-type cross-section monofilaments. 10. A fabric formed at least in part from a multifilament yarn as defined in the scope of the patent application. 11. A fabric formed at least in part from a multifilament yarn as described in item 9 of the patent application. 12. A fabric formed at least in part from a monofilament as described in item 8 of the patentable scope. 13. · A double-sided fabric comprising a multifilament yarn formed at least in part on one side by a double-leaf S-type or Z-type I monofilament having a cross-section, wherein the cross-section of each monofilament includes two Opposite end of the substantially flat side of -26 · country-like i ^ NS) A4 size (210 X 297 > ^^ ---- 589419 ABCD 6. The patent application covers a rectangular central segment, and the substantially flat side leaf surface has curved inclined portions extending from opposite ends of the central segment, wherein the width of the central segment and each leaf surface is substantially the same, and the central segment and each leaf surface have The length is substantially the same, where the angle formed between the leaf surface and the center segment is from about 105 ° to about 165 °, and the other side is another yarn. 14. The fabric of claim 13 in which the monofilament has a denier per filament of between about 0.1 and about 4.0. 15. The fabric according to item 13 of the scope of patent application, wherein the wetting agent is coated on the side of the monofilament including a cross section having a s-type or a Z-type. 16. The fabric of claim 15 in which the wetting agent is selected from the group consisting of hydrophilic polyamidoamine, hydrophilic silicone, and hydrophilic polyester. 17. The fabric of claim 14 in which the other side of the fabric includes polyester, polyamide, polyolefin or natural fibers. 18. The fabric of claim 10, wherein the wetting agent on at least one surface thereof is selected from the group consisting of hydrophilic polyamide, hydrophilic silicone, and hydrophilic polyester. 19. The fabric of claim 12 wherein the wetting agent on at least one surface thereof is selected from the group consisting of hydrophilic polyamide, hydrophilic silicone, and hydrophilic polyester. 20. —a solution for imparting wicking properties to monofilaments, yarns or fabrics, including poly (hexyl adipamide) -poly [poly (oxyethyl) hexanediamine] copolymer in water and 1,2-propanediol. 21. —A method for improving the wicking ability of objects, including freely applying for a patent -27- This paper size applies the Chinese National Standard (CNS) A4 specification (210 X 297 mm) 589419 8 8 8 8 AB c D At least one monofilament-forming article surrounding item 8, wherein the monofilament is optionally treated with a hydrophilic wick. -28 This paper size applies to China National Standard (CNS) A4 (210 X 297 mm)