JPS59216936A - Blended spun yarn - 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 The present invention relates to silk-like blend yarns. Generally, staple fibers of polyester fibers are blended with cotton fibers and are widely provided on the market as polyester/cotton blend yarns. However, the blended yarn provided here is only a combination with cotton fibers and lacks silk-like luster. this is.

It is thought that the combination of staple fibers, fineness, 4M, t:lit length, etc. are intertwined. In particular, it is thought that care must be taken in the combination of staple fibers to make it silk-like. In addition, the above-mentioned polyester cotton blend yarn uses hydrophobic polyester fiber.

However, it is not completely satisfactory in terms of hygroscopicity.

SUMMARY OF THE INVENTION Therefore, the present invention aims to eliminate the drawbacks of conventional Borien ether blended yarns and provide a blended yarn that has a silk-like luster, is soft and supple, has excellent moisture absorption, and has a gentle texture. .

Therefore, the present invention has a first-order configuration. That is, in the present invention, the fineness is 0.1 denier-roupe 1.2
Denier range and average fiber length of 25 to 51
Stable fibers of polyester fibers in the fin area,
The fineness is in the range of 0.1 denier to 1.2 denier,
Moreover, it is a blended yarn in which stable fibers of regenerated fibers having an average fiber length in the range of 25 to 51 fi are blended, and the stable fibers of the Borien ether fiber account for 20 to 80% by weight of the blended yarn. The blended yarn is characterized in that the twist coefficient (inch system) of the blended yarn is in the range of 2.5 to 4.5.

Below, one aspect of the present invention will be explained in detail. The present invention is.

We have devised ways to obtain a polyester blend yarn that has a silk-like luster, is soft and supple, and has excellent moisture absorption and a smooth texture.

First, the stable fiber of polyester fiber has a fineness of 0.
．． It ranges from 1 denier to 1.2 denier.

The average fiber length must be in the range of 256-51 mm. Similarly, the recycled fibers blended with the stable polyester fibers have a fineness of 0.1 denier or more.
It is in the range of 1.2 denier and the average fiber length is 25111
Must be within a range of ~51m. This is to create a soft texture by keeping the fineness and average fiber length of the stable fibers in the blend in the same range. If the fineness is less than 0.1 denier, the fineness will be too fine and it will be difficult to produce a silk-like luster.On the other hand, if the fineness exceeds 1.2 denier, it will be difficult to produce a silk-like luster and it will be soft. It becomes difficult to maintain suppleness. From this point of view, it is preferable to set the denier to 1.0 denier or less.

Also, the average fiber length must be in the range between 25 mm and 51 mm. If it is less than 25 grains, it will lose its strength and suppleness, while if it exceeds 51 grains, it will not have a silk-like luster even if it has a luster.

Note that the average fiber length is used for both the primary cut length and the burr cut length.

Next, a blend of stable polyester fiber and recycled stable fiber was chosen.

This is to compensate for the hydrophobicity of polyester fibers and provide excellent hygroscopicity.

Here, the polyester blend fiber is a polyester whose main m-acid unit is an alkylene terephthalate unit, preferably a copolyester or homopolyester containing 85 moles or more of ethylene terephthalate units, or a fiber-forming polyester consisting of a mixture thereof. refers to fibers obtained by Among polyester fibers, pressure-dyable polyester fibers are preferred. This is to cover up the poor dyeability of polyester fibers.

Here, the RFI pressure dyeable polyester fiber is a fiber that can be dyed under normal pressure and is obtained by spinning a polyester containing 80 or more moles of alkylene terephthalate repeating units such as ethylene terephthalate and butylene terephthalate. For example, an atmospheric pressure fractional dye-dyeable fiber obtained by spinning alkylene terephthalate polyester with m high a, copolymerized with 0.5 mol % to 6.0 mol % of 5-metal sulfoisophthalic acid component based on the total acid component. A fiber dyeable with atmospheric cation dyes obtained by conventional or high-speed spinning of alkylene terephthalate polyester.

In addition to the 5-metal sulfoisophthalic acid component, another acid component appropriately selected from isophthalic acid, adipic acid, sepacic acid, etc. may be copolymerized, or in addition to the 5-metal sulfoisophthalic acid component, niclicol may be copolymerized. Diethylene glycol as an ingredient.

Examples include fibers dyeable with normal pressure cation dyes obtained by spinning polynisdel obtained by copolymerizing neopentyl glycol, neopentyl glycol-alkylene oxide adducts, etc. ◎Consideration of dyeability Fibers dyeable with pressure cationic dyes are preferred.

Furthermore, the recycled fibers include vinylcone rayon, copper ammonia rayon, and the like, and among them, polynosic fibers are preferable because they can be used to make a blended yarn with excellent hygroscopicity.

By the way, the stable fibers of the polyester fibers and the stable fibers of the regenerated fibers are blended, and the blending ratio is such that the stable fibers of the polynisder fibers are 20% thick to the blended yarn. It must occupy 80% by weight.

This is because, in order to provide a silk-like luster, it is necessary to blend an appropriate amount of polyester fibers having a specific fineness and fiber length, that is, the above-mentioned weight. In order to produce a silk-like luster as a polyester fiber, it is more preferable to use fibers with irregular cross-sections, such as triangular, triangular, or square.

Furthermore, the twist coefficient of the blended yarn (inch system) f′i2.5 ~
Must be in the range of 4.5. Kedashi 1 Blended yarn #-1 according to the present invention: Since it is made of fine sterpul fibers, special attention must be paid to the twist coefficient (inch system) in order to achieve suppleness. This is because the range was chosen.

If it is less than 2.5, suppleness can be obtained, but the convergence will be reduced, making it difficult to obtain a silk-like luster.On the other hand, if it exceeds 4.5, a rough and hard feeling will appear and the soft texture will be lost. You won't be able to get it. When using fine-grained staple fibers, it is preferable to consider the yarn count itself. Kedashi.

This is to obtain suppleness. From this meaning, 40'S~
Preferably, the number is in the range of 120'S.

Next, to briefly describe the method for manufacturing the blended yarn of the present invention, staple fibers and recycled polyester fibers having a fineness in the range of 0.1 denier to 182 denier and an average fiber length in the range of 25 silk to 511 ff+ Staple fiber is a blend of raw cotton and sliver shapes.
Then, it goes through necessary processes such as roving and spinning, and is manufactured into a blended yarn.

As described above, according to the present invention, it has a silk-like luster.

It has the remarkable effect of producing a blended yarn that is soft and supple, has excellent moisture absorption, and has a smooth texture.

Example Staple fiber of normal pressure dyeable polyester fiber [Fineness 0
．． 7 denier, average fiber length 32 cm (pipe length cut)] and polynosic fiber staple fiber [fineness 1. θ denier, average fiber length 38 (equal length cut)] and 65% by weight
．． : 280 by performing sliver blending at a ratio of 35
A blended sliver of "1"/6 yds was made, and then passed through a roving frame and a spinning machine to produce a blended yarn of 60/S (
The twist coefficient was 3.3 in inch system). Using this blended yarn for warp and weft, the warp density is 169/irL, and the weft density is 90.
I wove a lawn with this book/1n. This fabric was of high quality, with excellent silk-like luster, softness, and excellent moisture absorption.

Patent applicant: Toyobo Co., Ltd.

Claims (1)

[Claims] 1. Staple fibers of polyester fibers having a fineness in the range of 0.1 denier to 1.2 denier and an average fiber length in the range of 2511II11 to 51 degrees, and a fineness of 0.1 denier. It is a blended yarn in which staple fibers of recycled fibers are in the range of ~1.2 denier and average fiber length is in the range of 25 fi ~ 51 m, and the staple fibers of the polyester fibers are 2
It accounts for 0 to 80% by weight. Furthermore, the twist coefficient (inch system) of the blended yarn is 2.5 to 4.
A blended yarn characterized by being in the range of 5. 2. The blended yarn according to claim 1, wherein the recycled fiber is polynosic. 3. The blended yarn according to claim 1 or 2, wherein the polyester fiber is an atmospheric pressure dyeable polyester fiber.