KR930010796B1 - Method for preparation of nylon spunlike and woven - Google Patents

Abstract

weaving the warps of differential-denier blended yarns; made by interlacing the nylon multifilaments of single-fiber fineness below 1.5 den., and of total fineness of 30-70 den., the fine-den. nylon filaments, cold-drawn to have the residual elongation of 40-50 %, and the nylon multifilaments of single-fiber fineness of 1-5 den., heat-drawn to have the residual elongation of 30-38 %, so that the feeding speed of warp interlacing is 30-60 % that of weft interlacing, and the air-pressure of warp interlacing is 110-130 % that of weft interlacing; and wefts of fine-den. nylong multifilaments of single-fiber fineness below 1.5 den., cold-drawn to have the residual elongation above that of warps, and interlaced.

Description

Nylon spun-like fabric and its manufacturing method

According to the present invention, after the cold drawing of the fine fine nylon multifilament with high residual elongation, and the low elongation of the fine nylon multifilament, the intermodal horn fine yarn manufactured by air interlacing is inclined and the residual elongation is inclined. It is a high-density weaving and calendering of sesame which is heat interlaced and then air interlaced with nylon multifilament, and has excellent shape stability, air permeability, spun-like appearance and characteristics of nylon. It relates to a nylon spun-like fabric exhibiting a touch and a method of manufacturing the same.

Conventionally, the spun-like fabric for the spouts has been made of polyester, nylon / polyester composite yarn, etc., and warp yarns have been used with false twist, air interlacing, stretched twist yarn, and the like. However, products made of polyester alone have a good feel, but are poor in strength and workability, and in the case of nylon / polyester composite yarns, problems such as non-exchange separation and dyeing are difficult.

On the other hand, nylon has a disadvantage of lack of softness and warmth despite the advantages of excellent strength and workability.

For example, cold weather materials such as Down Jacjet are predominantly made of nylon, which has strong strength and air permeability, but nylon gives a firm feel to the texture. There is a drawback to sound.

Therefore, the present invention not only imparts the basic characteristics of the fabric for winter sports sports using nylon, but also expresses excellent spun-like appearance and feel of the existing polyester or nylon / polyester composite yarn products. Its purpose is to provide a nylon fabric that does not have a rustling sound and does not wrinkle well and a method of manufacturing the same.

The present invention is described in detail as follows.

The present invention is hot-rolled to 30 to 38% of the residual elongation of the fine fine nylon filament (hereinafter referred to as sesame yarn) cold drawn to a nylon multifilament having a single yarn fineness of 1.5 denier or less and a total fineness of 30 to 70 denier to have a residual elongation of 40 to 50%. Slant made by air interlacing general nylon multifilament (hereinafter referred to as `` Tamsomdosa '') of 1 to 5 days of new single yarn fineness, and single yarn fineness which is air interlaced after cold stretching so that the residual elongation is higher than the above inclined 1.5 Sub-denier sesame is a nylon dense fabric made of weft yarn made of nylon multifilament. First, the preparation of the warp yarn is a fine filament having a single yarn fineness of 1.5 denier or less, preferably 0.48 to 1.05 d and a total fineness of 30 to 70 denier, cold drawn at room temperature so that the residual elongation is 40 to 50%. Nylon multi-rays are interlaced at 2 to 4kg / ㎠ air pressure by using Taesomdosa, which is thermally stretched to 120 ~ 160 ℃ for 30 ~ 38% of residual elongation of ~ 5 denier and 20 ~ 70 denier total fineness. Isom also manufactures blended yarn.

At this time, the supply speed of the Taesumdosa is 100 ~ 200m / min and the over-feed rate of the threesomedosa is 0.5% of the Taisumdosa, 45-60% of the total islands of the total islands To be

After weaving nylon multifilament with single yarn fineness of 0.48 ~ 1.05d and total fineness of 40 ~ 70 denier at room temperature so that residual elongation is 40 ~ 50%, the speed of 300 ~ 400m / min and 0.5 ~ 2kg / ㎠ Use air interlaced by pressure.

In the present invention, the reason why the residual elongation of the sesame sand yarn in the present invention is 1.05 to 1.67 times higher than that of the tassum sand yarn is that when the product shrinks and relaxes after sewing, the sesame sand yarn is floated on the surface of the fabric rather than the heat-set tassum yarn. This is for showing a feeling, and since crimps smaller than 130-160 pieces / m and weft yarns can be obtained, it is advantageous for high-density weaving.

In addition, in the present invention, the reason why the residual elongation of the blended yarn is less than that of the cold drawn weft is to induce the texture of the product to the weft, and in consideration of the increase in the weft side during the activity, it is reconsidered the urinary increase of the sewing product. In addition to the facts described above, the thermal stretching of the insulated Taesomdo yarn in the present invention is intended to prevent deformation caused by the ultra-fine multifilament during activities and washing by improving workability such as machining, weaving, etc. and increasing the shape stability of the product.

In the present invention, when the fineness ratio of sesame yarn to horn fiber is less than 45%, the spun-like effect is less, and the touch is less than 60%. The spun-like appearance of the product has a spun-like appearance, but the workability during interlacing decreases and the shape stability of the product. This is a problem. In addition, in the present invention, if the single yarn fineness is less than 1 denier, the islet blend is meaningless, and if it exceeds 3 denier, the softness and warm texture are inferior.

In the present invention, when the air interlacing, the feed rate of the blended yarn is inclined 30-65% less than the weft yarn and the air pressure is increased so that the slope is the number of interlocking 100-200 / m and the weft yarn 35-90 / m to achieve weaving and machining workability and product shape stability.

If the number of intersections of the slopes is less than 100 / m, the economical efficiency and workability are lowered. In the case of the weft, after processing such as refining, the number of entangled in the product is loosened to 30 ~ 50 / 100m, it can supplement the spun feeling on the inclined side. When prepared as described above, the weft yarn is prepared by weaving and processing at a high density of 230 ~ 300T, calendering at a temperature of 20 ~ 100 ℃.

The present invention is excellent in activity and fit by using the weft and weft yarn with different elasticity, and both the weft and weft yarn are air interlaced, so the workability is increased and the spun feeling effect is excellent. Due to its excellent form stability and air permeability, it can be widely used in sports and casual clothing such as duck down products, ski jackets and wind breakers.

Example 1

Interlacing sesame yarn cold drawn at 70 ° C for nylon 6 multifilament with residual elongation at 45% and tassom yarn hot drawn at 140 ° C with 50d / 24f nylon 6 multifilament at 36% residual elongation, The slope was prepared by interlacing at 180 m / min in speed, 3.5 kg / cm 2 of air pressure, and 0% of overfeed of fine fine yarn.

After weaving the nylon 6 multifilament with the inclination and 70d / 96f at a residual elongation of 45% at room temperature, weaving into a high-density plain weave using a weft interlaced at a speed of 300m / min and an air pressure of 1kg / ㎠ It was calendered at 50 degreeC. Appearance, touch and dyeability of the final product are shown in Table 1 divided into four grades by the sensory test.

(◎: Best, ○: Excellent, △: Normal, ×: Poor)

Comparative Example 1

In the same manner as in Example 1, 70d / 34f nylon 6 multifilament was used in place of sesame yarn.

Comparative Example 2

The same method as in Example 1, but was prepared using an 8-divided composite yarn having a fine yarn fineness of 0.2d with a fine fineness of 0.2d and a nylon-polyester ratio of 50:50, and using benzyl alcohol before dyeing the final product. The yarns were split, dyed and processed.

TABLE 1

Example 2

Interlace the sesame yarn cold drawn at room temperature with 43% of residual elongation of nylon 6 multifilament obtained by melt spinning at 50d / 90f, and the Taesumdosa hot-drawn at 140 ° C with 50d / 24f nylon 6 multifilament at 37% of residual elongation. The inclination was prepared by interlacing with the speed of 150m / min of Taesomdosa and the overfeed rate of Sesomdosa 0 and changing the air pressure as shown in Table 2.

After weaving the nylon 6 multifilament with the inclination and 70d / 96f at 43% of the residual elongation at room temperature, weaving it with a high density of plain weave using a weft interlaced at 300m / min air pressure 1kg / ㎠ It was calendered at ℃. The quality of the final product is shown in Table 2 in the order of appearance, touch, shape stability and weaving.

Comparative Example 3

It carried out similarly to Example 2, but set the speed of Taesomdosa to 80 m / min, and made the air pressure into 1, 3, 5 kg / cm <2>, respectively.

[Comparative Example 4]

It carried out similarly to Example 2, but set the speed of Taesomdosa to 300 m / min, and made the air pressure into 1, 3, 5 kg / cm <2>, respectively.

TABLE 2

The evaluation was in order of appearance → touch → shape stability → weaving.

Example 3

Interlacing sesame yarn cold drawn at room temperature with nylon 6 multifilament obtained by melt spinning at 37d / 72f at 40% of elongation, and tasman yarn hot drawn at 150 ° C with 50d / 24f nylon 6 multifilament at 34% residual elongation, The slope was prepared by interlacing at a speed of 180 m / min, air pressure of 3.5 kg / cm 2, and an overfeed of 0% of the fine island thread. After stretching the nylon 6 multifilament having the inclination of 70d / 122f to 40% of the residual elongation at room temperature, weaving it with high density of interlaced weft and plain weave while changing the speed 300m / min, air pressure to 0.5, 1, 3kg / ㎠ Processed in the usual way and calendered at 50 ° C.

[Comparative Example 5]

In the same manner as in Example 3, the feed rate at the time of interlacing the weft yarn was 100 m / min.

Comparative Example 6

As in Example 3, the feed rate at the time of interlacing the weft yarn was 500 m / min.

TABLE 3

The evaluation was in order of appearance → touch → weaving.

Claims (4)

The single fineness nylon filament having a single fineness of 1.5 or less and the total fineness of 30 to 70 denier is drawn to be 40-50% of residual elongation. Ise Island blended yarn made by interlacing 5 denier nylon multifilament with a slope, cold drawn and air-interlaced single yarn fineness with a residual elongation higher than the inclined yarn fineness of less than 1.5 days nylon nylon filament weft Method for producing a nylon spun-like fabric, characterized in that the manufacturing. The method for producing a nylon spun-like fabric according to claim 1, wherein the feed rate during warp interlacing is 30 to 60% of the feed rate during weft interlacing. The method of manufacturing a nylon spun-like fabric according to claim 1, wherein the air pressure during warp interlacing is 110 to 130% of the air pressure during weft interlacing. The fine multi-filament with single thread fineness of less than 1.5 deae, total fineness of 30 ~ 70% denier, 40-50% residual elongation, and nylon multifilament with 30 ~ 38% residual elongation, and single yarn fineness 1 ~ 5 denier A nylon spun-like fabric, characterized in that the interlaced one is inclined, and the residual elongation is higher than the inclination, and the fine multi-filament of the fine fine yarn having a single yarn fineness is 1.5 denier.