Classifications

• • D—TEXTILES; PAPER
  • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
  • D04B—KNITTING
  • D04B1/00—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
  • D04B1/14—Other fabrics or articles characterised primarily by the use of particular thread materials
  • D04B1/16—Other fabrics or articles characterised primarily by the use of particular thread materials synthetic threads
• • D—TEXTILES; PAPER
  • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
  • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
  • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
  • D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
• • D—TEXTILES; PAPER
  • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
  • D04B—KNITTING
  • D04B1/00—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
  • D04B1/02—Pile fabrics or articles having similar surface features
  • D04B1/04—Pile fabrics or articles having similar surface features characterised by thread material
• • D—TEXTILES; PAPER
  • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
  • D04B—KNITTING
  • D04B21/00—Warp knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
  • D04B21/02—Pile fabrics or articles having similar surface features
  • D04B21/04—Pile fabrics or articles having similar surface features characterised by thread material

Definitions

• the present invention relates to a multifilament used for a mohair-like pile fabric made of synthetic fibers, a pile fabric made of the same, and a method for producing a mohair-like pile fabric using synthetic fiber filaments.
• the natural mohair pile fabric obtained from Angora goat has a thick and straight hair, which constitutes the pile, and a group of bristles partially converged, It has the appearance feature that the hair with curl shape is partially converged.
• mohair pile fabrics are made of high quality fur and teddy bears because they have a characteristic that each piece of hair that makes up the pile itself is thick, but it is soft and has excellent heat insulation properties despite its thick appearance. It is used as a pile fabric for stuffed animals such as bears.
• mohair has a problem in that the supply of materials is unstable because it is natural, and it is expensive. For this reason, various pile fabrics having the characteristics of natural mohair using synthetic fibers have been studied, but no satisfactory fabric has yet been obtained.
• the thickness of single fiber is around 10 denier (1 l dtex).
• ⁇ When a pile is manufactured by knitting or weaving using the filament as it is, there is no entanglement between the single fibers, so that there is a problem that the single fibers may fall off at the time of forming the pile.
• entanglement between the single fibers is secured by using a bulk-processed multifilament or by means of combining the multifilament and the worsted yarn. Then, a pile having a straight shape is obtained by removing the crimp by polishing or the like.
• the conventional pile fabric manufacturing method has drawbacks in that the straightness of the fibers constituting the pile is limited, and the soft feel of the pile and the waist are not balanced.
• an object of the present invention is to provide a mohair-like pile fabric using synthetic fibers, in which the fibers constituting the pile have a slate property similar to that of natural mohair, and the soft touch of the pile and the waist are balanced. It is an object of the present invention to provide a novel multifilament and a pile fabric comprising the same. A further object of the present invention is to provide a method for obtaining a pile fabric similar to a natural mohair raw material with a small processing loss (loss due to falling off of a single fiber) when forming a mohair-like pile fabric from synthetic fibers. To provide. Disclosure of the invention
• a natural mohair-like pile fabric can be obtained using synthetic fibers as a raw material by using a multifilament having certain conditions. That is, knitting or weaving is performed using a multifilament made of synthetic fiber, which is non-twisted or twisted or twisted to 150 times / m or less, and has a pile length.
• the hair (fiber) constituting the pile which is unique to a pile fabric made of natural mohair, has a straight shape, and a partial converging group
• the present inventors have found that it is possible to obtain a pile fabric having the appearance having the following, and have reached the present invention.
• the multifilament for a mohair pile fabric of the present invention is a multifilament made of synthetic fibers, and has a single fiber fineness of 3 to 30 denier (3.3 to 33 dtex) and a total fineness of 10%. It is a multifilament having a denier of 0 to 750 (110 to 830 dtex) and a twist of 150 times / m or less.
• the method for producing a mohair pile fabric according to the present invention is characterized in that a multifilament composed of synthetic fibers is twisted at a rate of 150 times / m or less, and the pile length is increased by knitting and processing the multifilament. It is to manufacture pile fabric of 5 mm-100 mm.
• the knitting structure is preferably a double stitch, and a non-twisted filament that is not substantially twisted can be used as the multifilament.
• the flatness of the fiber cross section (hereinafter referred to as the ratio L / W, see FIG. 1) of the length L of the long axis of the fiber cross section to the length W of the short axis thereof is referred to as It is preferable to contain 50% by weight or more of flat cross-sectional fibers having a flattening ratio of 2 to 25.
• the multifilament of the present invention may be a non-twisted filament having substantially no twist.
• the multifilament of the present invention is more preferably made of acrylic synthetic fiber.
• the pile fabric of the present invention is a mohair-like pile fabric obtained by knitting the above-mentioned multifilament.
• the pile fabric is a mohair-like pile in which the fibers constituting the pile have substantially no crimp, and the pile length is preferably in the range of 5 to 100 mm.
• pile fabric of the present invention is suitably used particularly for clothing, toys (stuffed animals), interiors, and industrial materials.
• multifilament refers to an aggregate of two or more monofilaments having a continuous length, and belongs to long fibers in the classification of general synthetic fibers.
• the multifilament of the present invention is composed of synthetic fibers having a single fiber fineness of 3 to 30 denier (3.3 to 33 dtex), and has a total fineness of 100 to 75 denier (110 to 8 denier). 30 dtex). If the single fiber fineness is less than 3 denier (3.3 dtex), the texture of the pile will be too soft and tend to be waistless, and the appearance of the fibers constituting the pile will be thin, and the thick hair unique to mohair Is not preferred. On the other hand, if it exceeds 30 denier (33 dtex), the rigidity of the fibers that make up the pile increases, and the texture of the pile becomes coarse and hard, resulting in too strong a waist. They tend to be lost and are not preferred.
• Fibers with a finer single fiber size and softness and no waist are more suitable for products with a shorter pile length. Conversely, fibers with a higher single fiber size and a harder and tighter waist have a longer pile length. Suitable for products, but within the above range of 3 to 30 denier (3.3 to 33 dtex), for example, in order to obtain a hard evening pile, the pile length of the single fiber is made thick and short. You can do it. If the total fineness of the multifilament is less than 100 denier (11 O dtex), when the mohair pile fabric is manufactured, the finishing weight of the fabric becomes extremely small, and the pile base is exposed.
• the knitting process In addition to the decrease in product quality, there is a problem that yarn breakage is likely to occur in the knitting process, and the knitting process must be performed densely to increase the density of the piled fabric, lowering productivity. Tend to. Conversely, if the total fineness of the multifilament exceeds 75 denier (83 Odtex), the finished weight of the pile becomes extremely large, and the weight of the fabric becomes heavy, and at the same time, the feel of the pile becomes hard, which is not preferable. In addition, the multifilament may become too thick, causing some single fibers in the multifilament not to be stuck to the needles during the knitting process, causing trouble in uniform knitting. The preferred range of the total fineness of the multifilament should be selected according to the fiber material.
• the range of 100 to 750 denier (110 to 830 dtex) is preferable, and in the sense of emphasizing the tactile sensation, 150 to 600 denier (170 to 750 denier). 6 7 O dtex) is more preferable.
• the material of the synthetic fiber of the multifilament for mohair pile fabric of the present invention is not particularly limited, but it is preferable to use acrylic fiber, acryl-based fiber, polyester fiber, polyamide fiber, etc. which are generally used as raw cotton for pile. Acrylic fibers are preferred among them, and the fibers themselves have an animal hair-like appearance and feel, and are particularly excellent as a material for a mohair-like pile fabric.
• the acrylic fiber is a synthetic fiber obtained from a polymer containing 30% by weight or more of acrylonitrile, and is copolymerized with acrylonitrile in addition to acrylonitrile homopolymer. Copolymers obtained by using the obtained vinyl monomers may be used.
• Vinyl monomers that can be copolymerized with atarilonitrile include vinyl chloride, vinylidene chloride, vinyl bromide, vinylidene bromide, acrylates, methacrylates, acrylamides, methacrylamides, or Mono- or dialkyl-substituted products thereof, acrylic acid, methacrylic acid, itaconic acid, styrene sulfonic acid, methacrylic sulfonic acid, methacryloxybenzene sulfonic acid, methacryloxypropylene sulfonic acid, or these Metal salts, and ammonium diamine salts, glycidyl acrylate, glycidyl methacrylate, acrylic glycidyl ether, and methyl glycidyl ether.
• vinyl chloride and vinylidene chloride are preferable, and when flame retardancy is required, a copolymer with vinyl chloride and vinylidene chloride is preferable.
• a stabilizer having an effect on light resistance and the like is added as necessary.
• various additives may be added in appropriate amounts for adjusting the gloss.
• pigments, dyes, etc. may be used as appropriate to make colored fibers. If high flame retardancy is required, a flame retardant may be added as appropriate as long as the tactile sensation of the pile is not impaired. You may. Further, in order to prevent the fiber cross section from cracking, for example, 1 to 20% by weight of a rubbery substance described in JP-A-58-215744 is added to the spinning solution. Is also good.
• Examples of the method of twisting (twisting) the multifilament include, for example, an application type using a polyester yarn twisting machine and a double yarn such as a commonly used twisted yarn or a twisted yarn.
• a twister method or the like can be adopted, but is not limited to these.
• the number of twists is preferably one in which a weak twist of 150 times / m or less is performed for the purpose of preventing partial separation of filaments in the pile knitting step and preventing hair loss after commercialization. If the number of twists exceeds 150 turns / m, fine crimps generated by the twist remain in the pile even after finishing, which is unfavorable in feel and appearance.
• non-twisted filament having substantially no twist is a concept that includes not only a state where there is no twist but also a state where no artificial twisting is performed.
• the fiber cross-sectional shape of the synthetic fiber used in the present invention is not particularly limited, but when a pile fabric is manufactured, a flat cross-section is preferable because a round cross-section tends to give a hard waist when touching the pile. .
• the multifilament is composed of thick fibers having a single fiber fineness of 20 denier (22 dtex) or more, if the fiber cross-section has a low flattening ratio, the pile will have a strong stiffness.
• the flatness of the fiber is 6 or more, but if the flatness is too high, the fiber will become too stiff and the fiber will be quite thick at the same time, so the flatness should be 25 or less. Is preferred.
• the multifilament is made of fine fibers with a single fiber fineness of 10 denier (11 dtex) or less, if the fiber cross-section has a high flatness, the pile will become extremely weak. Therefore, it is preferable that the flattened shape has a low flattening shape of 5 or less. However, if the flattening ratio is too low, the stiffness becomes too strong. On the contrary, the flattening ratio is preferably in the range of 2 to 5. As a whole, the flatness of the multi-filament fiber is preferably in the range of 2 to 25.
• the flat fiber having a cross sectional shape in the range of the flattening ratio is contained by 50% by weight or more.
• the flatness of the fiber cross section can be measured by observing the multifilament fiber cross section using, for example, a scanning electron microscope.
• the spinning nozzle is a wet type.
• a hole having a circular or elliptical shape may be used.
• a desired fiber having a flat cross-sectional shape can be obtained.
• the pile length refers to the length from the base fabric of the piled pile fabric to the tip of the pile. If the pile length is shorter than 5 mm, it becomes difficult to make the pile length uniform, and the pile length does not approximate mohair, and the commercial value is reduced. Conversely, when knitting is performed so that the pile length is longer than 100 mm, there is a problem that the knitting efficiency is reduced, and the fibers constituting the pile are liable to be entangled with each other, which also tends to lower the commerciality. There is.
• the pile length is also related to the flatness of the synthetic fiber constituting the pile and the fineness of the single fiber.
• the pile length is more preferably in the range of 10 to 40 mm.
• the pile length is more preferably in the range of 50 to 100 mm.
• a desired mohair-like pile fabric By knitting or weaving the multifilament of the present invention as described above, a desired mohair-like pile fabric can be obtained.
• the obtained pile fabric can be used for clothing, toys (such as stuffed toys), interiors, industrial materials, and the like, but is particularly suitable for clothing and toys utilizing the characteristics of natural mohair.
• a known knitting machine or weaving machine can be used, but knitting is preferable in terms of productivity, cost, and ease of processing.
• the knitting of the pile in the present invention is performed by a general knitting process or a machine modified to form a long pile.For a flat knitting structure, for example, use a circular knitting machine. In the case of a warp knitting structure, a known knitting machine such as a raschel knitting machine or a tricot knitting machine can be used, but is not particularly limited. Also, when double stitch knitting is employed, the knitting can be performed using a known circular knitting machine. In the knitting process, the knitting structure is not particularly limited.
• the double stitch knitting structure refers to a knitted knitted fabric having a W-shaped nap with folded naps, whereas a normal knitted pile has a V-shaped with naps folded (a conceptual diagram is shown in Fig. 2).
• the multifilament used for knitting may be directly applied to a knitting machine.
• the filament monofilament is used.
• adding a small amount of oil to the multifilament increases the convergence of the single fiber, and can suppress separation (hereinafter referred to as “burr”).
• the oil agent used for improving the convergence of the single filament of the multifilament used herein is not particularly limited, and generally commercially available oil agents for yarn which improve the convergence can be used.
• the yarn oil include nonionic surfactants such as polyoxyethylene, alkyl ether, polyether, and polyoxyethylene-ethylene oxide copolymer oils, and anionic surfactants.
• the activator examples include oils such as aliphatic carboxylic acids and amino acids, and examples of hydrophobic oils include oils such as liquid paraffin, and these oils may be used alone or in combination of two or more.
• oils such as aliphatic carboxylic acids and amino acids
• hydrophobic oils examples include oils such as liquid paraffin, and these oils may be used alone or in combination of two or more.
• liquid paraffin oil agents are particularly preferable.
• MYB-39S manufactured by Matsumoto Yushi Pharmaceutical Co., Ltd.
• the amount of the oil agent to be attached is 0.
• the range of 25% to 2.5% is preferable in that the influence on the product is small and variation in knitting can be suppressed. If the amount of oil applied exceeds 2.5%, the final product may have a sticky feeling, or it may absorb dust and become easily contaminated.
• the method of attaching the oil agent to the multifilament is, for example, a method of adding it as a primary oil or a secondary oil in a multifilament production process, or a method of rewinding the obtained filament bobbin after the production of the multifilament.
• the method or process such as directly adding oil to the multifilament before knitting. I just need to be. It is more preferable that the number of twists of the multifilament, in which the convergence is improved by the attachment of the convergence oil agent, is not more than 80 turns / m from the viewpoint of pile separability in the case of a pile fabric.
• the hair that constitutes the pile generally has a strait shape. Particularly, when the pile length (hair length) is long, about 2 ridges per inch are used. Some have undulations and are partially converged.
• a straight tone pile fabric is obtained by the method described above, and then processed using a heat brush or a rotary evening dryer. The pile fabric having the napped shape can be obtained.
• FIG. 1 is an explanatory diagram of the flatness of a fiber cross section of a synthetic fiber.
• Figure 2 is a conceptual diagram of the knitting structure of a normal knit pile.
• Figure 3 is a conceptual diagram of the knitting structure of a double stitch knit pile.
• a copolymer resin consisting of 49.5% by weight of acrylonitrile, 50% by weight of vinyl chloride, and 0.5% by weight of sodium styrenesulfonate is dissolved in acetone to obtain a 29.5% by weight spinning solution.
• the spinning stock solution was previously colored with an acetone-soluble cationic dye, and 10% by weight of an acetone was dissolved using a circular nozzle (0.18 mm, 50 holes).
• the obtained gel-like fiber is stretched at a high speed of 2.5 times in warm water at 50 ° C to 60 ° C, and further stays for at least 20 seconds under a slightly relaxed state at 60 ° C to 65 ° C.
• a commercially available soft finish oil Polyamine Polyamide-based New Soft BN (manufactured by Kitahiro Chemical Co., Ltd.), is attached to the fiber at 1.0% to the fiber weight, and then dried. Dry at 150 ° C, and in the same atmosphere After performing a 3.4-fold heat stretching in the air, a 12% relaxation heat treatment was performed at 160 ° C.
• a liquid paraffinic mineral oil as a secondary oil agent was applied in an amount of 1.4% based on the fiber weight to obtain a multifilament.
• the single fiber fineness of this multifilament was 10 denier (1 ldtex), and the total fineness was 500 denier (56 Odtex).
• Pile fabric using ramen [single fiber fineness: 3 denier (3.3 dtex), number of filaments: 50 f, total fineness: 150 denier (17 Odtex)] and acrylic 1 / 30th count ground yarn
• An acrylate resin was applied to the back of the pile, and dried at 130 ° C for 5 minutes using a Pinten Yuichi dryer. After that, it was processed once at 120 ° C and once at 100 ° C with a polisher processing machine to adjust the pile direction, and the surface feathers were shaved with a shearing processing machine. [Finish weight: 490 g / m 2 ].
• a copolymer resin consisting of 93% by weight of acrylonitrile, 6% by weight of vinyl acetate and 1% by weight of methallylsulfonic acid was dissolved in dimethylacetamide to prepare a 26.5% by weight spinning solution.
• the undiluted solution was converted to 20% by weight of 65% by weight of dimethylacetamide and 35% by weight of water.
• a fatty acid ester-based oil agent JP-POL PA-1 (manufactured by Matsumoto Yushi Pharmaceutical Co., Ltd.), and Zontes TL, a quaternary ammonium salt-based oil agent, were used as spinning oil agents.
• 5% by weight of a mixed oil agent was applied in an amount of 0.75% based on the fiber weight. After sufficiently drying the yarn, it was further subjected to a double stretching by a dry heat and a relaxation heat treatment of 10%. Further, before the winding step, 1.0% by weight of liquid paraffinic mineral oil was adhered as a secondary oil agent to obtain a multifilament.
• the single filament fineness of this multifilament was 10 denier (11 dtex), and the total fineness was 600 denier (670 dtex).
• 92% by weight of the flat cross-section fiber was present in the multifilament, and the flatness was 3.0 on average.
• Circular knitting machine set to double stitch structure using the above multifilament [Knitting knitting machine made by Shengchang Machine of Korea, number of gauges: 14G, number of courses: 23Course / inch], polyester multifilament [ Knitted pile fabric using single fiber fineness of 3 denier (3.3 dtex), number of filaments 50 f, total fineness of 150 denier (17 Odtex)] and acrylic 1 / 3-th
• An acrylic resin was applied to the back of the pile, and dried at 130 ° C. for 5 minutes using a Binten Yuichi dryer. After that, it was processed once at 120 ° C and once at 100 ° C with a polisher processing machine to adjust the pile direction, and the surface feathers were shaved with a shearing processing machine.
• the fabric was obtained [final fabric weight: 5 10 g / m 2 ].
• this pile fabric (bore) is used as a stuffed skin, it has excellent straightness, has a natural calm luster, and has a non-sticky feel and animal-like touch. It was a straight pile fabric that had a stiffness and an excellent bulkiness.
• a copolymer resin consisting of 49.5% by weight of acrylonitrile, 50% by weight of vinyl chloride, and 0.5% by weight of sodium styrene sulfonate was dissolved in acetone to prepare a 29.5% by weight spinning solution. and precolored the spinning stock solution at ⁇ seton-soluble cationic dyes, circular nozzle 0. 1 5 mm, with a number of pores 2 5), in ⁇ Se tons aqueous 10 weight 0/0 Wet spinning at high speed.
• the obtained gel-like fiber is stretched 2.5 times at high speed in warm water at 50 ° C to 60 ° C, and stays for at least 20 seconds in a slightly relaxed state.
• the pile direction is adjusted by processing once at 120 ° C and once at 100 ° C with a polisher, and the surface feathers are shaved with a shearing machine, and the pile length is 15 mm and double-stitched.
• a textured pile fabric was obtained. This was brushed with a polisher finish, and the obtained straight pile fabric (bore) was used as a stuffed skin. It has a natural calm luster and has a special appearance. Further, the texture was mohair-like pile fabric which had no stickiness, had an animal hair-like feel, was stiff, and was excellent in bulkiness.
• Polyethylene terephthalate having an intrinsic viscosity of 0.53 was spun with a melt extruder.
• the spinning nozzle used was a flat nozzle (0.75 mm in long axis width, 0.16 mm in short axis width, 30 holes) at a spinning temperature of 270 to 285 ° C and a take-up speed of 400 m / min. Was.
• the obtained fiber was stretched twice in hot water at 80 ° C and then stretched 2.5 times in hot water at 85 ° C. Heat treatment was performed at the mouth of the heat sink to obtain a multifilament.
• the single filament fineness of this multifilament is 10 denier (11 dtex), the total fineness is 300 denier (33 Odtex), and the cross-sectional shape of this fiber was observed using a scanning electron microscope. , Average flatness is 4.5 It was a flat cross section fiber.
• Circular knitting machine set to double stitch structure using the above-mentioned multifilament using a knitting machine made by Shengchang Machine of Korea, number of courses: 26 Course / inch, number of gauges: 14 G, drawing: 30 mm Polyester multifilament [single fiber fineness 3 denier (3.3 dtex), number of filaments 50 f, total fineness 150 denier (17 Odtex)] and acrylic 1 / 30 Knit pile fabric using ground yarns of the same yarn count, apply acrylic acrylate resin on the back of pile, and dry at 130 ° C for 5 minutes using Pinten Yuichi dryer Let me know.
• a copolymer resin consisting of 49.5% by weight of acrylonitrile, 50% by weight of vinyl chloride and 0.5% by weight of sodium styrenesulfonate is dissolved in acetone to prepare a 29.5% by weight spinning solution.
• the spinning solution was prepared and colored in advance with an acetone-soluble cationic dye.
• the solution was dissolved in a 10% by weight aqueous solution of acetone using a circular nozzle (0.35 mm, 25 holes). Wet spinning at high speed.
• the obtained gel-like fiber is stretched at a high speed of 2.5 times in warm water at 50 ° C to 60 ° C, and stays for at least 20 seconds under a relaxed state of 60 ° C to 60 ° C to 6 ° C.
• Example 2 After desolvation in a 5 ° C hot water bath, a softening oil (New Soft BN) similar to that used in Example 1 was applied by 1.0% to the fiber weight, and dried at 150 ° C. After performing a 3.4-fold thermal stretching, a 12% relaxation heat treatment was performed. Next, before the winding process, liquid paraffinic mineral oil was attached as a secondary oil agent at 1.4% based on the fiber weight to obtain multifilament. The single fiber fineness of this multifilament was 40 denier (44 dtex), and the total fineness was 100 denier (111 dtex).
• Table 1 shows the results of Examples 1 to 4 and Comparative Example 1.
• Evaluation method Based on a sensory test (comparison with natural mohair).
• Evaluation criteria The following five-level evaluation.
• Evaluation method Based on sensory test.
• Evaluation criteria The following five-level evaluation.
• Evaluation method Based on sensory tests.
• Evaluation criteria The following five-level evaluation.
• Evaluation method Based on a sensory test.
• Evaluation criteria The following five-level evaluation.
• a copolymer resin consisting of 49.5% by weight of acrylonitrile, 50% by weight of vinyl chloride and 0.5% by weight of sodium styrenesulfonate is dissolved in acetone to prepare a 29.5% by weight spinning solution.
• the spinning stock solution was pre-colored with an acetone-soluble cationic dye, and high-speed dissolved in a 10% by weight aqueous solution of acetone using a circular nozzle (00.15 mm, 50 holes).
• a circular nozzle 00.15 mm, 50 holes
• Example 2 After desolvation in a warm water bath, the same soft finishing oil (New Soft BN) as used in Example 1 was applied as a non-convergent oil in an amount of 0.7% based on the fiber weight. After being dried and further stretched by a factor of 3.4, it was subjected to a 12% relaxation heat treatment and wound around a bobbin as a non-twisted yarn.
• the single fiber fineness of this multifilament was 10 denier (1 ldtex), and the total fineness was 500 denier (560 dtex).
• a circular knitting machine set to a normal knitting fabric (b) a circular knitting machine set to a double stitch structure, [(a), (b), In each case, a knitting knitting machine made by Shengchang Machinery of Korea, gauge number: 14G, number of courses: 23 Course / inch], polyester multifilament [single fiber fineness 3 denier (3.3 dtex)] A pile fabric with a pile length of 7 mm was knitted using fifty fifty filaments, a total fineness of 150 denier (17 Odtex)] and a ground yarn of 1 / 30th count of acryl.
• Acrylic ester resin was applied to the back of the pile fabric and dried at 130 ° C for 5 minutes using a pin tenter dryer.o After that, the mixture was heated at 120 ° C using a polyester processing machine. Once in the same direction at 100 ° C to adjust the pile direction, and after passing through the brushing process once, the pile surface A pile fabric having a pile length of 7 mm was obtained by cutting with a shearing machine. [Finishing weight: (a) Normal knitting; 400 g / m 2 , (b) Double stitch knitting: 450 g / m 2 ].
• the pile fabrics (a) and (b) thus obtained are both pile fabrics in which the straight shape is maintained from the bottom of the base fabric in the same manner as those obtained by directly weaving the filaments.
• This product has a slate-like appearance and a soft touch that is equivalent to that of a pile fabric that uses this as a material.
• a polisher process a brushing process and a shirring process
• 7.0 g of a normal knitting of the fabric (a) was performed with respect to a pile weight of 100 g.
• the double-stitch knitted fabric (b) weighed 1.2 g.
• the knitted fabric (a) usually showed hair breakage when the surface was rubbed by hand, and was inferior in merchantability.
• a copolymer resin consisting of 93% by weight of acrylonitrile, 6% by weight of vinyl acetate, and 1% by weight of methyl sulfonic acid was dissolved in dimethylacetamide to prepare a 26.5% by weight spinning solution. .
• the stock solution was wet-spun at high speed into an aqueous solution at 20 ° C with 75% by weight of dimethylacetamide and 25% by weight of water. After the obtained gel-like fiber was washed in warm water, it was subjected to primary stretching 3.5 times with boiling water.
• a circular knitting machine set to a double stitch structure using each of the obtained S-twisted filaments [pile machine: knitting machine made by Shengchang Machinery of Korea, game machine Polyester multifilament [single fiber fineness 3 denier (3.3 dtex), filament number 50 f, total fineness 150 denier (14 G, course number: 2 OCourse / inch) 17 7 Odtex)] and Acryl 1 / 30th yarn were used to knit the pile fabric.
• Acrylic ester resin is applied to the back of the pile, and the surface is dried using a Pinten Yuichi dryer. Dried at C for 5 minutes. After that, once at 120 ° C with a polisher, 100 times.
• the obtained pile fabrics (c :) and (d) are pile fabrics in which the straight shape is maintained from the bottom of the base fabric, as in the case where the filaments are directly knitted.
• the product had a slate-like appearance and soft touch that were equivalent to the pile fabric used.
• the processing loss of the cloth (c) was 2.0 g, and the processing loss of the cloth (d) was 1.1 g.
• (d) was a product with a better balance of productivity and processing loss.
• the pile fabric having a pile length of 30 mm obtained in (d) of Example 6 was heated to an internal temperature of 95 ° C under a 100% humidity condition while blowing saturated steam with a rotary tumbler dryer. For 20 minutes. After stopping the injection of the saturated steam, the mixture was cooled to 60 ° C and the pile fabric was taken out.
• the pile fabric (f) obtained was a product having a pile of natural mohair with a gentle undulation of about two peaks per inch, and a partially converged appearance.
• An acryl-based fiber having the same composition as in Example 6 was crimped at a rate of 8 dens per inch in a press-in type steam set, and a denier of 10 (11 dtex) X 15 2 mm was obtained. —I got a pull. This was used as a yarn of 2/28 count, lower twist 350 (twice / m) / twist 230 (twist / m).
• This yarn is knitted into a knitting knitting machine with a general knitting structure [a knitting knitting machine made by Nagata Kikai Co., Ltd., gauge: 14 G, number of courses: 23 Course / inch], polyester multifilament [single fiber fineness: 3 denier Per cent (3.3 dtex), number of filaments 50 f, total fineness 150 denier (17 Odtex)]
• a pile fabric was knitted using a 1 / 30th-counted ground yarn.
• An acrylate resin was applied to the back surface of the pile fabric and dried at 130 ° C. for 5 minutes using a Binten Yuichi dryer.
• a copolymer resin consisting of 49.5% by weight of acrylonitrile, 50% by weight of bichloride, and 0.5% by weight of sodium styrenesulfonate is dissolved in acetone to obtain a 29.5% by weight spinning solution.
• the spinning stock solution was previously colored with an acetone-soluble cationic dye, and was then placed in a 10% by weight aqueous solution of acetone using a circular nozzle (0.18 mm, 60 holes). Wet spinning at high speed.
• the obtained gel fiber is stretched 2.5 times at high speed in warm water at 50 ° C to 60 ° C, and furthermore, stays for at least 20 seconds under a slightly relaxed state at 60 ° C to 65 ° C.
• Zontes IB manufactured by Matsumoto Yushi Pharmaceutical Co., Ltd.
• Matsumoto Yushi Pharmaceutical Co., Ltd. which is a commercially available soft finishing oil
• the spinning convergence oil by 1.0% based on the fiber weight
• the dry heat is applied.
• a 12% relaxation heat treatment was performed at 160 ° C to obtain a multifilament.
• the single fiber fineness of this multifilament was 10 denier (11 dtex), and the total fineness was 600 denier (67 Odtex).
• the pile was machined once at 120 ° C and once at 100 ° C using a polishing machine to adjust the pile direction, and the surface feathers were shaved with a shearing machine to make the pile length 35 mm pile fabric was obtained [final fabric weight: 1100 g / m 2 ].
• the obtained pile fabric (h) was used as a stuffed skin, a strong twist remained in the nap portion and a crimp-like shape was obtained, resulting in poor stratability.
• the total amount of pile waste generated in the brushing and shearing steps was 2.2 g to obtain 100 g of pile.
• Table 2 shows the results of Examples 5 and 6 and Comparative Examples 2 and 3 described above.
• Evaluation method Based on sensory tests.
• Evaluation criteria The following five-level evaluation.
• a pile fabric having excellent straightness, a soft touch similar to natural mohair, and a stiffness can be obtained.
• suitable pile products can be obtained as clothing, toys, interiors, and industrial materials.

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• Engineering & Computer Science (AREA)
• Textile Engineering (AREA)
• Mechanical Engineering (AREA)
• Knitting Of Fabric (AREA)

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• 2000
  • 2000-03-03 WO PCT/JP2000/001252 patent/WO2000052241A1/ja not_active Application Discontinuation
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  • 2000-03-03 CN CN00804603A patent/CN1115432C/zh not_active Expired - Fee Related
  • 2000-03-03 KR KR1020017010551A patent/KR20010102265A/ko not_active Application Discontinuation

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