JP3165726U - Untwisted textured twisted yarn - Google Patents

Abstract

An object of the present invention is a non-twisted texture ply-twisted yarn suitable for interior goods, bedding goods, towel fabrics, etc., which has a unique touch and softness, texture, air permeability, water absorbency, and is fluffy. Untwisted twisted yarn for unprecedented towels that prevents fluff dropping and thread slippage, and non-twisting that eliminates the need to dissolve and remove reinforcing yarns in subsequent processes and eliminates environmental problems such as wastewater treatment The purpose is to provide a textured twisted yarn. Kind Code: A1 Abstract: A non-twisted textured twisted yarn comprising a partially untwisted spun yarn 1 and a reinforcing yarn 2 having a spiral wall twist formed on the outer periphery of the partially untwisted spun yarn, wherein the reinforcing yarn is a natural fiber spun yarn. A non-twisted texture ply-twisted yarn made of a yarn or a synthetic fiber filament, wherein the helical wall twist number is 1 to 5 times per inch. [Selection diagram] Fig. 1

Description

  The present invention relates to a so-called untwisted textured twisted yarn having a substantially untwisted structure suitable for towel fabrics.

2. Description of the Related Art Conventionally, as a non-twisted texture yarn (hereinafter also referred to as a non-twisted yarn) suitable for a towel fabric, a twisted yarn in which a spun yarn is used as a core yarn and a wall twist is formed around the spun yarn is known. A structural yarn using a cotton yarn or a soluble polyvinyl alcohol yarn as a reinforcing yarn for forming a twisted yarn is disclosed. For example, a twisted yarn in which wall spinning is formed simultaneously with the untwisting of the core yarn using a cotton spun yarn as the core yarn and a thinner cotton spun yarn as the reinforcing yarn is disclosed (Patent Document 1).

On the other hand, a yarn is disclosed in which a sliver or a coarse yarn mixed with a soluble polyvinyl alcohol-based synthetic fiber is moisture-absorbed and drafted, and then the surface of the fiber is subjected to an adhesion treatment by applying a steam treatment (Patent Document 2).

In the case of Patent Document 2, although soluble vinyl alcohol is interposed between fibers and the fibers are bonded and bonded to each other, there is an advantage that the tensile strength of the weaving yarn at the time of weaving is improved. A process for removing soluble polyvinyl alcohol is required. After removing the polyvinyl alcohol that has intervened between the fibers and bonded the fibers, voids are formed between the fibers, improving air permeability and water absorption. In addition, since the durability of the fabric as the final product is inferior and the polyvinyl alcohol needs to be removed, the problem of waste liquid treatment and the problem of global environmental pollution remain.

The untwisted yarn having a structure using cotton yarn as the core yarn and soluble polyvinyl alcohol yarn as the reinforcing yarn requires the same problem as in Patent Document 2, that is, a step of removing the soluble polyvinyl alcohol after weaving. It is inevitable that there will be problems with waste liquid treatment and global environmental pollution. Furthermore, since this kind of yarn dissolves soluble vinyl alcohol, there is a problem in that it cannot be dyed or exposed with untwisted yarn.

Patent Document 1 describes the use of cotton yarn for both the core yarn and the reinforcing yarn to suppress the occurrence of fluff and fluff fall. However, the core yarn is untwisted to the point where the number of twists of the twisted cotton yarn is finally left once per inch, while the reinforcing yarn forms a wall twist number of 10 times per inch. As a result, the fiber bundles can be prevented from being loosened, but the softness of the untwisted core yarn and the fluffy feeling are killed. .

JP-A-2005-42281 JP-A-49-72426

The present invention is a non-twisted textured twisted yarn suitable for interior goods, bedding products, towel fabrics, etc., and has a unique touch and softness, texture, breathability, water absorption, fluffing and fluffing thread In untwisted towel yarn that has not been realized so far,
The purpose is to provide untwisted yarn that eliminates the trouble of dissolving and removing the reinforcing yarn, can be easily dyed and bleached at the stage of untwisted yarn as well as after weaving, and does not cause environmental problems such as wastewater treatment. And

In order to solve the above-described problems of the prior art, the present inventor has repeatedly studied as follows. That is, as a result of intensive studies on the yarn structure of the core yarn spun yarn and the reinforcing yarn wound around the outer periphery thereof,
First, after partially untwisting the spun yarn that becomes the core yarn, by controlling the relationship between the number of twists of the partially untwisted spun yarn and the number of wall twists formed of the reinforcing yarn, the untwisted yarn The original texture, softness, and swelling are not lost, and the yarn has a structure that prevents fluffing, fluffing, and even thread slippage, and the durability of the product after weaving can be sufficiently secured. . In particular, an untwisted textured twisted yarn suitable for towel fabrics can be provided. Furthermore, conventionally, when synthetic fibers are used for the reinforcing yarn, it is said that the water absorption power of the whole untwisted yarn is reduced (Patent Document 1), and it has not been usually used. However, by extremely miniaturizing the fineness of the reinforcing yarn, there is no decrease in water absorption, and the soft feel and swell of the untwisted yarn are not lost. It has also been found that twisted yarn can be provided.

  The present invention that has solved the above-described problems has the following configuration.

  The gist of the present invention is a non-twisted textured twisted yarn comprising a partially untwisted spun yarn 1 and a reinforcing yarn 2 in which a spiral wall twist is formed on the outer periphery of the partially untwisted spun yarn 1. Consists of natural fiber spun yarn or synthetic fiber filament, and the spiral wall twist is 1 to 5 twists per inch.

  The partially untwisted spun yarn 1 used for the core yarn is preferably an untwisted textured twisted yarn made of one or more of cotton, rayon, viscose, hemp, polyester, and acrylic, and the reinforcing yarn is a synthetic of 45 dtex or less. Non-twisted textured twisted yarns made of ultrafine filaments are preferred.

  The material of the reinforcing yarn 2 is preferably a polyester filament or a polyamide filament, which may be a multifilament or a monofilament, but the use of a monofilament is particularly preferred.

  Further, (fineness of partially untwisted spun yarn) / (fineness of reinforcing yarn) is preferably 7 or more.

Next, as a manufacturing means of the present invention, a spun yarn that becomes a core yarn is supplied, and a part of the base yarn of the supplied spun yarn is untwisted to about 60% by an untwisting machine. This can be achieved by combining the spun yarn 1 and the reinforcing yarn 2 and then further untwisting in the same direction as the untwisting direction of the core yarn and simultaneously winding the reinforcing yarn 2 to form a wall twist. And it is desirable to manufacture the untwisted textured twisted yarn by setting the wall twist number of the reinforcing yarn 2 to 1 to 5 times per inch.

The untwisted textured twisted yarn of the present invention has a soft touch, swell, and texture that are inherent to the untwisted thread, has excellent breathability and water absorption, and has a structure that prevents fluffing, fluffing and thread slippage. Twisted yarn can be provided, and there is no trouble of dissolving and removing the reinforcing yarn in the later process, and after weaving, processing such as dyeing and bleaching can be easily performed at the stage of non-twisting yarn, and wastewater treatment etc. It is possible to provide a non-twisted textured twisted yarn suitable for a towel fabric that does not cause environmental problems and can sufficiently ensure the durability of a product after weaving. In particular, it can be suitably used for a wide range of new-sensation towel fabrics in application fields that are difficult to achieve with conventional towel fabrics.

It is an expansion schematic of the untwisted textured twisted yarn of this invention.

  Hereinafter, embodiments of the present invention will be described in detail.

The untwisted textured twisted yarn of the present invention is a twistless textured twisted yarn in which a substantially untwisted core yarn is a spun yarn, and a wall twist is spirally formed on the outer periphery of the spun yarn that becomes the core yarn with a reinforcing yarn. It is a structure.

The core yarn used in the present invention is spun yarn, and the materials are cotton, rayon, viscose, hemp,
It is preferable to use polyester, acrylic or the like. In particular, when used for towels, cotton is preferred because of its excellent touch, softness, water absorption, and softness when used. From the viewpoint of protecting the global environment, organic cotton (organically grown cotton) is preferred. It is particularly preferable to use it.

  The partially untwisted spun yarn 1 referred to in the present invention means that approximately 40% (up to 60% of the basic twist) is untwisted with respect to the number of basic twists possessed by a standard cotton spun yarn, and then another 1 Add ~ 5 twists. The standard cotton spun yarn is, for example, 18 times / inch of twist for British cotton count No. 20, 22 times / inch for No. 30, and 25 times for No. 40. In the case of No. 60 / inch, one with a twist of 30 times / inch is used. Therefore, for example, when a spun yarn with a British cotton count of 20 and a twist number of 18 times / inch is used as the supply yarn, the remaining number of twists in the first untwisting should be 8 to 14 times / inch. Preferably, the speed is 11 to 12 times / inch. If the number of twists to be left here is less than 8, it is not preferable because the effect of reducing the durability of the yarn structure, such as fluffing, fluffing, and thread pull-out, will occur. The twist direction may be the S direction or the Z direction. From the relationship with the winding direction of the reinforcing yarn 2, it is preferable that the winding direction and the twisting direction of the reinforcing yarn 2 are the same. Next, the number of additional untwisting performed simultaneously with the wall twisting should be 1 to 5 times per inch, preferably 2 to 4 times, and in the case of 20th spun yarn, The residual twist number is 5 to 12 times / inch.

  The number of wall twists formed with the reinforcing yarn 2 of the present invention is 1 to 5 times / inch, preferably 2 to 4 times / inch. Here, if the number of wall twists is less than 1 / inch, the reinforcement of the core yarn becomes unsatisfactory, which leads to fluffing of untwisted yarn and loosening of fluffing yarn, which is not preferable. On the other hand, when it exceeds 5 times / inch, for example, when a towel fabric is used, it is not preferable because the touch, soft feeling, and soft feeling during use can be suppressed.

  The reinforcing yarn 2 of the present invention may be a spun yarn made of natural fiber or a synthetic fiber filament. Reinforcing yarn 2 maintains the untwisted texture of the untwisted textured spun yarn as the core, and at the same time prevents yarn fluffing, fluffing and thread slippage in the subsequent weaving process, It is an important role not to disturb the twisted texture. Therefore, it is preferable that the finer the finer, if appropriate strength is maintained. For example, in the case of spun yarn, it is possible to use a British cotton count of 40 or more, preferably 60 or more.

  The synthetic fiber filament used for the reinforcing yarn 2 of the present invention is preferably an ultrafine fiber filament, particularly preferably. The fineness of the ultra-fine filament is preferably 45 dtex or less, and the balance between the required holding strength when weaving the twisted yarn itself and the durability and the touch when used, soft feeling, water absorption, soft feeling and water absorption In order to keep it, it is preferably 30 dtex or less, particularly 20 dtex or less. Here, it is particularly preferable to make the reinforcing yarn 2 ultrafine in order to enhance the untwisted texture of the spun yarn, to sufficiently fulfill the role of the reinforcing yarn 2, and to suppress the presence of the reinforcing yarn 2 as much as possible. It becomes an aspect.

As the synthetic ultrafine filament, a multifilament or a monofilament may be used, but a monofilament is particularly preferable because it improves the touch, softness, water absorption, softness and durability during use. The cross-sectional shape of the synthetic fiber filament single yarn is not particularly limited. For example, any shape such as a round shape, a polygon shape, a multi-leaf shape, a hollow shape, a cross shape, a flat shape, and a special irregular shape can be applied. It may be an assembly of different cross sections.

Examples of the raw material for the synthetic ultrafine filament include polymers such as polyester, polyamide, polyolefin, and polyacrylonitrile. Polyesters and polyamides are particularly preferable because they improve the touch, softness, water absorption, softness and durability during use.

  In the yarn structure of the untwisted textured twisted yarn of the present invention, a partially untwisted spun yarn that becomes the core yarn by setting the fineness ratio of the partially untwisted spun yarn 1 that becomes the core yarn and the reinforcing yarn 2 to 7 or more. 1 Untwisted texture structure Partially untwisted spun yarn 1 Fully reinforced yarn without deteriorating the durability of the yarn, while at the same time emphasizing improved touch, softness, softness and water absorption performance It is preferable because both effects can be ensured, more preferably 10 or more, and particularly preferably 12 or more.

Here, the method for obtaining the fineness ratio of the partially untwisted spun yarn 1 and the reinforcing yarn 2 as the core yarn is as follows. The partially untwisted spun yarn 1 serving as a core yarn usually has a yarn thickness represented by an English cotton count. The entangled yarn of the reinforcing yarn 2 is a synthetic fiber, and the thickness of the yarn is usually represented by a tex count. Therefore, in the present invention, the thickness of the spun yarn is converted into a decitex count, and the thicknesses of the partially untwisted spun yarn 1 and the reinforcing yarn 2 are aligned with the decitex and compared to obtain the ratio. (Decitex count) = 5905.4 ÷ (English cotton count) can be converted. For example, when the British type 20th single yarn is used as the core yarn and the 80th single yarn is used as the reinforcing yarn:
5905.4 ÷ 20th count = 295.27 dtex (fineness of partially untwisted spun yarn 1),
5905.4 ÷ 80 count = 73.82 dtex (fineness of the reinforcing yarn 2), and therefore the fineness ratio is 3.99.

  The thickness of the partially untwisted spun yarn 1 as the core yarn of the present invention is rich in touch and softness peculiar to the intended untwisting, texture, breathability and water absorption, and also suppressed fluffing and fluffing In order to form untwisted untwisted yarn for towels, it is better to use British cotton counts of 16 to 40.

Next, a method for producing the untwisted textured twisted yarn of the present invention will be described. First, a twisted spun yarn is used as a supply yarn as a core yarn. For example, in British cotton count No. 20, the number of twists is 18 times / inch, No. 30 is 22 times / inch, No. 40 is 25 times / inch, 6
In the case of No. 0, a wire twisted 30 times / inch is used. This spun yarn is once partially decomposed and twisted to 60% of the number of basic twists using an untwisting machine. Next, after the core yarn spun yarn and the reinforcing yarn that have been partially decomposed and twisted are aligned and combined, then, using the untwisting machine, in the direction of untwisting the core yarn spun yarn, further 1 to 7 times / inch Simultaneously with untwisting, the reinforcing yarn 2 is wound around the core yarn spun yarn to form a wall twist of 1 to 7 times / inch.

For example, when a spun yarn of No. 20 and a twist number of 18 times / inch is used as the supply yarn, the number of twists finally remaining in the core yarn is 5 to 12 times / inch, preferably 6 to 10 times / inch. ,
The number of times the reinforcing yarn 2 is wound around the core yarn is 1 to 5 times / inch, preferably 2 to 4 times / inch.

Conventionally, there is a method in which a spun yarn having a low twist number is suddenly formed in a process of forming a non-twisted structure of a spun yarn serving as a core yarn, and then twisted with a reinforcing yarn and untwisted (Patent Document 1). On the other hand, in the present invention, once the twisted spun yarn is used and partly (up to 60% of the basic twist) is untwisted, and then the untwisting and the reinforcing yarn are combined again, Surprisingly, the final yarn can be given a high bulkiness, for example a great effect of improving the softness of the towel.

EXAMPLES The present invention will be described in detail below with reference to examples, but the present invention is not limited to these examples. Each performance evaluation in the examples was performed by the following methods.

Measuring method of fineness (dtex)
Three 100 m long polyamide multifilament cassettes were prepared, each mass (g) was measured, an average value was obtained, and multiplied by 100.

(Texture evaluation method)
Towel fabric woven using each untwisted textured twisted yarn, the outer shape is 15cm x 15c
As an evaluation sample of m, this sample was sandwiched between both hands, and the texture as a tactile sensation was evaluated as an average value of five monitors as follows.
Very soft 5 points Soft 4 points Normal 3 points Slightly hard 2 points Hard 1 point

(Evaluation method for fluff removal during weaving)
Minimal ◎
Somewhat accepted ○
Allowed (not noticeable) △
Remarkably recognized ×

Example 1
A No. 20 single yarn used for the core yarn and a cotton spun yarn of several 18 times / inch were wound on a normal untwisting machine by untwisting 6.5 times / inch. Next, the partially untwisted spun yarn 1 and the 60th single yarn (more than several 30 times / inch) of cotton spun yarn (reinforcing yarn) were drawn together and combined. Next, the combined yarn is untwisted at a rate of 3 turns / inch in the untwisting direction of the partially untwisted spun yarn 1 with the untwisting machine, and at the same time the 60th reinforcing yarn 2 is wound around the wall. The untwisted textured twisted yarn was formed on cheese. Warp the above-mentioned untwisted-textured twisted yarn and the normal No. 20 single cotton spun yarn into a warp beam so that the non-twisted-textured twisted yarn becomes a warp pile yarn and the normal cotton spun yarn becomes a warp yarn As for the weft yarn, towel cloth was manufactured using ordinary 20th cotton yarn. The core yarn (partly untwisted spun yarn 1) is 20th cotton spun yarn = 5905.4 ÷ 20th = 295.27 dtex, and the reinforcing yarn 2 is 60th cotton spun yarn = 5905.4 ÷ 60th = 98.42 dtex, and the fineness ratio of the core yarn (partially untwisted spun yarn 1) to the reinforcing yarn 2 = 295.27 / 98.42 = 3.00. The evaluation results of the towel are shown in Table 1.

(Example 2)
Using a 20th single yarn as the core yarn and a cotton spun yarn of several 18 times / inch, the yarn was wound up by untwisting 6.5 times / inch with a normal untwisting machine. Next, the partially untwisted spun yarn 1 and a high-polyester fiber (reinforcing yarn) of 15 dtex / 36 filaments were drawn together and combined. Then, the combined yarn was wound with high multi-polyester fiber at a rate of 3 revolutions / inch simultaneously with the untwisting to form a wall twist, and a non-twisted textured twisted yarn was formed and wound on cheese. Warp the above-mentioned untwisted-textured twisted yarn and the normal No. 20 single cotton spun yarn into a warp beam so that the non-twisted-textured twisted yarn becomes a warp pile yarn and the normal cotton spun yarn becomes a warp yarn As for the weft yarn, towel cloth was manufactured using ordinary 20th cotton yarn. The substantially untwisted spun yarn as the core yarn is 20th cotton spun yarn = 5905.4 ÷ 20th = 295.27 dtex, the reinforcing yarn is 15 dtex, and the core yarn (partially untwisted spun yarn 1 ) And reinforcing yarn 2 fineness ratio = 295.27 / 15 = 19.68. The evaluation results of the towel are shown in Table 1.

(Example 3)
A towel fabric was produced by forming a non-twisted yarn-like twisted yarn under the same conditions as in Example 2 except that high-polypolyester fiber of 30 dtex / 72 filaments was used as the reinforcing yarn 2. The fineness ratio = 295.27 / 30 = 9.84. The evaluation results of the towel are shown in Table 1.

Example 4
A towel fabric was produced by forming an untwisted textured twisted yarn under the same conditions as in Example 2 except that high-polypolyester fibers of 45 dtex / 108 filaments were used as the reinforcing yarn 2. The fineness ratio = 295.27 / 45 = 6.56. The evaluation results of the towel are shown in Table 1.

(Comparative Example 1)
A cotton fiber was used as a raw material fiber, and a sliver was prepared with a continuous machine, and then a spun yarn of 20th number was prepared from 11 times per inch. The same conditions as in Example 1 except that a cotton spun yarn with 20 turns and a twist of 11 turns / inch was used as the core yarn, and the 80-yarn cotton spun yarn of 34 turns per inch was used as the reinforcing yarn 2. A towel fabric was produced by forming a twisted yarn-like twisted yarn. The center yarn is 20th cotton spun yarn = 5905.4 ÷ 20th = 295.27 dtex, and the reinforcing yarn is 80th cotton spun yarn = 5905.4 ÷ 80th = 73.82 dtex, The fineness ratio of the reinforcing yarn was 295.27 / 73.82 = 3.99. The evaluation results of the towel are shown in Table 1.

The untwisted textured twisted yarn of the present invention is suitable for towel fabrics, which is suitable for towel fabrics, which is suitable for the protection of the global environment, without the problem of waste liquid treatment, and does not lose the original soft feel, bulge and water absorption. In addition, it has a structure that suppresses fluffing and fluffing, and it can give a gentle touch to the baby's skin in particular, it is promising for use in baby applications, and the towel can ensure sufficient durability after weaving. An untwisted textured twisted yarn suitable for a woven fabric can be provided. In particular, it can be suitably used in a wide range of applications such as new sense towel fabrics in application fields that are difficult to achieve with conventional towel fabrics.

1. Partially untwisted spun yarn Reinforcing thread

Claims (7)

A non-twisted textured twisted yarn comprising a partially untwisted spun yarn and a reinforcing yarn in which a spiral wall twist is formed on the outer periphery of the partially untwisted spun yarn, wherein the reinforcing yarn is made of natural fiber spun yarn or synthetic fiber filament The twisted number of the spiral wall twist is 1 to 5 times per inch. The untwisted textured twisted yarn according to claim 1, wherein the partially untwisted spun yarn is made of one or more of cotton, rayon, viscose, hemp, polyester, and acrylic. The non-twisted textured twisted yarn according to claim 1 or 2, wherein the reinforcing yarn comprises a synthetic ultrafine filament of 45 dtex or less. The untwisted-textured twisted yarn according to any one of claims 1 to 3, wherein the reinforcing yarn is a synthetic fiber monofilament. The untwisted textured twisted yarn according to any one of claims 1 to 3, wherein the reinforcing yarn comprises a polyester filament. The non-twisted textured twisted yarn according to any one of claims 1 to 3, wherein the reinforcing yarn comprises a polyamide filament. The untwisted textured twisted yarn according to any one of claims 1 to 6, wherein (the fineness of the partially untwisted spun yarn) / (the fineness of the reinforcing yarn) is 7 or more.