JPS6128043A - Spun yarn like fabric - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] (Industrial application field) The present invention relates to a spun yarn-like fabric.

(Relationship with Prior Art) Conventionally, it has been difficult to weave a spun yarn-like fabric using a filament loom using spun yarn as the warp yarn.

Furthermore, it was easy to weave using a filament loom using filament yarn for the yarn and spun yarn for the weft, but the texture of the fabric was similar to that of woven filament yarn for both the warp and weft. It was not much different from filament fabric. There is also a method of obtaining a spun yarn texture by using yarn with uneven thickness in the direction of the yarn axis, but in this case, bulkiness is lacking. Furthermore, when the warp yarn was a mixed yarn of a regular pyriester yarn and a yarn with uneven thickness in the yarn axis direction, the texture was similar to that of a filament fabric. ? It is woven using a filament loom using lyester filament yarn as the warp yarn, and it has not been possible to obtain a spun yarn-like fabric that exhibits a spun yarn texture, is rich in bulk, and expresses a natural uneven appearance.

(Objective of the Invention) The object of the present invention is to obtain a spun yarn-like fabric that exhibits a spun yarn texture and a natural uneven appearance, and is also rich in bulkiness.

(Structure of the invention F!i,) In the present invention, a cationic dyeable pyriester filament and a polyester filament having uneven thickness in the yarn axis direction are mixed at a ratio of 20F80 to so:2o weight%, and are entangled. The degree Di is 20≦Di≦100, and the twist coefficient is 70.
It is a spun yarn-like fabric in which interlaced mixed fiber yarns with an additional twist of 0 to 10 ooo are arranged as warp yarns, and spun yarns are arranged as weft yarns.

The polyester fiber yarn dyeable with normal pressure cation dyes used in the spun yarn-like fabric of the present invention refers to ester fiber yarns that can be dyed with cationic dyes at temperatures below 100°C. It is a fiber yarn obtained by spinning pyralkylene terephthalate obtained by copolymerizing a chemical component. When the copolymerization component is as small as 1%, for example, based on the total acid components, for example, JOOO"7
It can be obtained by spinning at a high speed of 1 minute or more, or if it is large, for example 6% based on the total acid component, it can be obtained by spinning at a normal spinning speed.

In addition to polyalkylene terephthalate, polyesters are additionally copolymerized with acid components such as isophthalic acid, sebacic acid, adipic acid, or polyesters are polyalkylene terephthalate with a polyhydric alcohol alkylene oxide adduct. It may also be something that has been spun.

The filament denier is not particularly limited, but 30 denier to 100 denier is suitable. Further, the pyriester filament having uneven thickness in the yarn axis direction to be mixed with the cationic dyeable polyester filament may be obtained by any method, but for example, when drawing an undrawn yarn of polyester fiber, the The undrawn yarn is preheated with a first heating element so that the cross section is not uniformly heated, and then stretched in contact with a frictional resistor at a stretching ratio of less than 1.1 times the natural stretching ratio of the undrawn yarn, and further An example is a filament obtained by tension heat setting while running in contact with a second heating element whose temperature is higher than the temperature of the first heating element at a stretching ratio of 1.0 to 1.08. The frequency of occurrence of thickness unevenness of the filament and the ratio of thickness unevenness expressed by UR value are not particularly limited, but it is preferable that the UR value is 15% or more. Air blending is preferred as the method for blending cationic dyeable polyester filaments and polyester filaments having uneven thickness in the yarn axis direction. It is preferable to adjust the air pressure at this time to an extent that does not cause fluff, and the difference in hot water shrinkage rate ΔS, HW between the cationic dyeable polyester filament and the pyriester filament, which has uneven thickness in the direction of the thread axis, is 5~
50% is preferred. Further, it is necessary that the cationic dyeable polyester filament and the polyester filament having uneven thickness in the yarn axis direction are mixed at a ratio of 20:80 to 80 F and 20% by weight. If the mixing ratio is outside this range, there will be problems in terms of fibre-making properties and the texture will be poor. Also, a regular appearance cannot be expressed.

In addition, the confounding at that time is 120≦D when the degree of confounding is Dl
It is necessary that i≦100, and furthermore, the degree of entanglement Di is 40 from the fibre-making property, the presence or absence of interlaced marks on the first surface.
-50 is more preferable. If the interlaced open weave Dl is 20 or less, no glue can be made, and the number of additional twists must be increased, resulting in a loss of texture and the degree of entanglement is 10.
If it is 0 or more, the texture of the different shrinkage mixed wire is lost and, on the other hand, an interlace mark appears on the other side. In this case, the entangling treatment is preferably carried out using high pressure air or the like. Further, the degree of entanglement Di is measured as follows. A load of 0.29A was applied to the sample yarn of length III, and the single yarn denier was set to 1.
A hook with a load of 09 is hooked onto the sample thread and allowed to fall due to its own weight.

When the hook stops at the intersecting point, move the hook just below the intersecting point and repeat this process.

Let the total number of times of this repetition be Dl.

The yarn that has been interlaced as described above is further twisted. In this case, the twist coefficient for one additional twist is 700 to 5o0 from the viewpoint of weavability and texture.
Must be 0. If the twist coefficient is 5,000 or more, it is not good because the quality of the texture peculiar to the differentially shrinkable mixed fiber yarn decreases and the cost also increases. Also, the 1 twist coefficient is 7
If it is less than 00, the weaving efficiency decreases, and as a result, it is necessary to take measures to increase the degree of entanglement Di, which is not good as it leads to the generation of interlaced marks. In short, a balance between the degree of entanglement and the twist coefficient is necessary for weaving non-sizing yarns with different shrinkage, and the more preferable twist coefficient is 1 in combination with the degree of entanglement mentioned above.
000 to 3,000, and the thickness of the bottleneck mixed fiber yarn varies depending on the textile specification and use, but is preferably 50 to 250 deniers. The spun yarn arranged in the weft is cotton yarn 1gi ridge Tsuku,
It may be a natural fiber yarn such as hemp, spun silk, or wool, or it may be a spun yarn made of pyriester fiber, cationic dyeable ester fiber, or the like. Alternatively, a blended yarn of one of these may be used. As the weave structure, even a plain weave structure with the strongest binding force can produce a desirable effect, so other burr weave structures may be used. Moreover, any fineness may be used.

When processing this fabric, it is necessary to process it at as low a tension as possible to avoid stretching it too much, as with conventional differentially shrinkable mixed yarn fabrics.

As a result, the woven fabric becomes fuller after being relaxed, and by further reducing the weight by 10 to 20%, a soft feel can be obtained. Furthermore, the uneven thickness of the thick and thin yarns and the uneven dyeing give an irregular feel, and when dyed with cation dispersion 2-pack dyeing, the different dyeability of the cationic dyeable yarns further emphasizes the natural uneven appearance of the fabric. becomes.

(Effects of the Invention) By using polyester filament yarn as the warp yarn, a fabric was obtained that exhibited a single-spun yarn texture and irregular appearance, and was also rich in bulkiness.

(Examples) Hereinafter, the present invention will be explained with reference to Examples, but the present invention is not limited to these Examples.

Example Warp yarns include polyester multifilament 75 denier 36 filament thick-and-thin yarn Reball (manufactured by Toyobo Co., Ltd.) (SHY 45%) and power/thion dyeable polyester filament Fairy ■ (manufactured by Toyobo Co., Ltd.) ( SHY 10%) degree of confounding Di-4
0 air interlaced mixed fiber yarn with Itari set twisting machine B a
The yarn is twisted at o o t/m and treated in one vacuum set at 70°C for 40 minutes, and the weft is a normal pressure cation dyeable type polyester spun Karafine 0 (manufactured by Toyobo Co., Ltd.) 20'B single yarn. MIi was made with a 2/2 twill structure with a warp density of 114 threads/inch and a lateral density of 70 threads/inch. Next, relax the gray fabric with a normal pressure washer for 1.5 minutes while giving it a fir effect, dehydrate it, and dry it at x a o ℃ x s.
A preset of o seconds was performed, followed by a 14% alkaline placement. When this was finished by ordinary dispersion dyeing, a bulky and soft spun melon fabric with irregular shading effects in the warp direction and fluff all over the fabric was obtained.

Example 2 A blended yarn of 80% normal pressure cation dyeable polyester spun yarn (Karafine e) and 20% wool was inserted into the same warp as in Example 1 as the weft to give a warp density of 102 threads/inch and a weft density of 80 threads/inch. A 2/2 inch twill fabric was woven.

The blend ratio at this time was 90% polyester and 10% wool. The gray fabric was relaxed while giving a fir effect with a normal pressure washer, and after dehydration and drying, it was subjected to a raw bleaching treatment for 20 minutes in a normal pressure circular and finished setting at 160°C. In addition, cam fit processing has been applied to achieve a finishing density of 104 lines/inch and 8 lines/inch.
It was made into a fabric with 6 threads/inch.

This fabric was a spun melon fabric with yarn unevenness in the warp and weft direction, and was soft and fluffy, with the elasticity of wool.

Patent brewer Toyobo Co., Ltd.

Claims (1)

[Claims] The ratio of cationic dyeable polyester filament and polyester filament with uneven thickness in the yarn axis direction is 20:80.
It is mixed at a ratio of ~80:20% by weight, and the degree of entanglement is D.
i is 20≦Di≦100, and the twist coefficient is 700 to 100
A spun yarn-like fabric characterized in that interlaced mixed fiber yarns twisted with 00 are arranged as warp yarns, and spun yarns are arranged as weft yarns.