Crimped polester-based fiber, method for producing same, pile fabric including same, and method for producing pile fabric
A manufacturing method and fiber technology, which are applied in the field of pile fabric manufacturing, can solve the problems that the curling of pile fibers cannot be fully removed and the pile fibers are entangled, and achieve the effect of good passability.
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Embodiment 1
[0082]
[0083] Using polyethylene terephthalate (PET) with an intrinsic viscosity (IV value) of 0.65, using a common spinning machine, using a spinning nozzle with a circular section with a diameter of 0.4 mm and a number of holes of 48, in Spinning was performed at a spinning temperature of 290° C. at a speed of 320 m / min, and the resulting undrawn yarn was drawn by 375% using a hot roll at 80° C. to obtain a drawn yarn. In addition, 0.3 parts by weight of titanium oxide was added to PET as a matting agent based on 100 parts by weight of PET. Then, after the drawn yarn is spun to an appropriate fineness, a crimp shape having the crimp characteristics shown in the following Table 1 is given by a gear crimper heated to 155° C. (curl imparting step 1), and then a stuffer box method is used to The crimping machine was preheated at 98° C. to impart crimps to obtain crimped PET yarns having a crimped shape (curl imparting step 2) having the crimp properties shown in Table 1 belo...
Embodiment 2
[0087]
[0088] Using polyethylene terephthalate (PET) with an intrinsic viscosity (IV value) of 0.65, using a common spinning machine, using a spinning nozzle with a flat section with a diameter of 0.3 mm and a number of holes of 200. Spinning was performed at a spinning temperature of 270° C. at a speed of 400 m / min, and the resulting undrawn yarn was drawn by 310% using a hot roll at 80° C. to obtain a drawn yarn. In addition, 0.3 parts by weight of titanium oxide was added to PET as a matting agent based on 100 parts by weight of PET. Then, after the drawn yarn is spun to an appropriate fineness, a crimped shape having the crimp characteristics shown in Table 1 below is given by an embossing roll heated to 180° C. (curl imparting step 1), and then The crimping machine was preheated at 98° C. to impart crimps to obtain crimped yarns having a crimped shape (curl imparting step 2) and a single fiber fineness of 3 dtex having the crimp properties shown in Table 1 below.
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Embodiment 3
[0092]
[0093] Using polyethylene terephthalate (PET) with an intrinsic viscosity (IV value) of 0.65, using a common spinning machine, using a spinning nozzle with a flat section with a diameter of 0.3 mm and a number of holes of 200. Spinning was performed at a spinning temperature of 270° C. at a speed of 400 m / min, and the resulting undrawn yarn was drawn by 310% using a hot roll at 80° C. to obtain a drawn yarn. In addition, 0.3 parts by weight of titanium oxide was added to PET as a matting agent based on 100 parts by weight of PET. Then, after the drawn yarn is spun to an appropriate fineness, a crimped shape having the crimp characteristics shown in Table 1 below is given by an embossing roll heated to 180° C. (curl imparting step 1), and then The crimping machine was preheated at 98° C. to impart crimps to obtain crimped yarns having a crimped shape (curl imparting step 2) and a single fiber fineness of 3 dtex having the crimp properties shown in Table 1 below.
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